The writer's purpose when writing this passage is______.A. to describe how pruning a tree is doneB. to discuss different ways of pruning treesC. to give practical instructions for pruning a treeD. to explain how a tree wound gets diseased and heals
The writer's purpose when writing this passage is______.
A. to describe how pruning a tree is done
B. to discuss different ways of pruning trees
C. to give practical instructions for pruning a tree
D. to explain how a tree wound gets diseased and heals
相关考题：
You are a network techn ician, study the exhibit carefully. All multilayer switches are running PIM sparse mode. Host CKB and Host CKF are sending IGMPv2 join messages to their respective multilayer switches. Which description is correct?（）A. Switches 1, 2, 3, and 6 will part icipate in the multicast tree once pruning has taken place.B. Switches 2 and 6 will participate in the multicast tree once pruning has taken place.C. Switches 1, 2, 3, and 6 will participate in the multicast tree.D. The multicast server is the rendez vous point of the multicast tree.
Refer to the exhibit. All multilayer switches are running PIM dense mode. Recipient A and Recipient B are sending IGMPv2 joi n messages to their respective multilayer switches. Which statement is true?（）A. The Multicast Server is the root of the multicast tree. Switches 1, 3, 4, and 5 will participate in the multicast tree once pruning has taken place.B. The Multicast Serv er is the root of the multicast tree. Switches 4 and 5 will participate in the multicast tree once pruning has taken place.C. Switch 3 is the root of the multicast tree. Switches 3,4, and 5 will participate in the multicast tree once pruning has taken place.D. Switch 3 is the root of the multicast tree. Switches 1,3,4, and 5 will participate in the multicast tree once pruning has taken place.E. Switch 1 is the root of the multicast tree. Switches 1,4, and 5 will participate in the multicast tree once pruning has taken place.F. Switch 1 is the root of the multicast tree. Switches 1,3,4, and 5 will participate in the multicast tree once pruning has taken place.
Passage ThreeTrees should only be pruned (修剪) when there is a good reason for doing so. Many gardeners believe that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.First, pruning may be done to make sure that trees have a desired shape. The object may be to get a tree of the right height, and to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut out diseased or dead wood, or branches that are rubbing against each other and thus causing wounds. A tree may grow healthier by removing the branches that are locking up the centre and so preventing the free movement of air.One result of pruning is that an open wound is left on the tree and this provides an easy entry (进入) for diseases, but it is a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die. Pruning is usually clone in winter, for then you can see the shape of the tree clearly without the interference from the leaves.41. According to the article, which of the following statement is NOT true?A. Pruning is necessary when there are unwanted branches.B. Damage is done to a tree if it is left to grow in its own way.C. Diseased or dead branches should be cut away if they are found to rub against each other.D. Growing side branches often prevent air from moving freely.
The wounds result from pruning will do the following EXCEPT______.A. damage the treeB. heal itselfC. cause the diseaseD. give the tree a desired shape
The writer suggests that pruning should be done in winter because______.A. the cut surface can heal more quicklyB. open wounds on the tree run the less risk of getting diseasedC. a gardener can do pruning more easilyD. the leaves can interfere
Trees should only be pruned when there is a good and clear reason for doing so and,fortunately, the number of such reasons is small. Pruning involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.First, pruning may be done to make sure that trees have a desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches that are blocking up the centre and so preventing the free movement of air.One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease, but it is a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die, so that there is a period when the tree is at risk. It should be the aim of every gardener to reduce which has been pruned smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hurts and then paint it with one of the substances available from garden shops produced especially forthis purpose. Pruning is usually without interference from the leaves and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly.Why is a special substance painted on the tree?A.To make a wound smooth.B.To prevent disease entering a wound.C.To cover a rough surface.D.To help a wound to dry.
Trees should only be pruned when there is a good and clear reason for doing so and,fortunately, the number of such reasons is small. Pruning involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.First, pruning may be done to make sure that trees have a desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches that are blocking up the centre and so preventing the free movement of air.One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease, but it is a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die, so that there is a period when the tree is at risk. It should be the aim of every gardener to reduce which has been pruned smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hurts and then paint it with one of the substances available from garden shops produced especially forthis purpose. Pruning is usually without interference from the leaves and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly.Pruning should be done to__________.A.make the tree grow tallerB.improve the shape of the treeC.get rid of the small branchesD.make the small branches thicker
Trees should only be pruned when there is a good and clear reason for doing so and,fortunately, the number of such reasons is small. Pruning involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.First, pruning may be done to make sure that trees have a desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches that are blocking up the centre and so preventing the free movement of air.One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease, but it is a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die, so that there is a period when the tree is at risk. It should be the aim of every gardener to reduce which has been pruned smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hurts and then paint it with one of the substances available from garden shops produced especially forthis purpose. Pruning is usually without interference from the leaves and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly.?What was the author's purpose when writing this passage?A.To give practical instruction for pruning a tree.B.To give a general description of pruning.C.To explain how trees develop diseases.D.To discuss different methods of pruning.
Trees should only be pruned when there is a good and clear reason for doing so and,fortunately, the number of such reasons is small. Pruning involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.First, pruning may be done to make sure that trees have a desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches that are blocking up the centre and so preventing the free movement of air.One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease, but it is a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die, so that there is a period when the tree is at risk. It should be the aim of every gardener to reduce which has been pruned smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hurts and then paint it with one of the substances available from garden shops produced especially forthis purpose. Pruning is usually without interference from the leaves and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly.Trees become unhealthy if the gardener__________.A.allows too many branches to grow in the middleB.does not protect them from windC.forces them to grow too quicklyD.damages some of the small side branches
Trees should only be pruned when there is a good and clear reason for doing so and,fortunately, the number of such reasons is small. Pruning involves the cutting away of overgrown and unwanted branches, and the inexperienced gardener can be encouraged by the thought that more damage results from doing it unnecessarily than from leaving the tree to grow in its own way.First, pruning may be done to make sure that trees have a desired shape or size. The object may be to get a tree of the right height, and at the same time to help the growth of small side branches which will thicken its appearance or give it a special shape. Secondly, pruning may be done to make the tree healthier. You may cut diseased or dead wood, or branches that are rubbing against each other and thus cause wounds. The health of a tree may be encouraged by removing branches that are blocking up the centre and so preventing the free movement of air.One result of pruning is that an open wound is left on the tree and this provides an easy entry for disease, but it is a wound that will heal. Often there is a race between the healing and the disease as to whether the tree will live or die, so that there is a period when the tree is at risk. It should be the aim of every gardener to reduce which has been pruned smooth and clean, for healing will be slowed down by roughness. You should allow the cut surface to dry for a few hurts and then paint it with one of the substances available from garden shops produced especially forthis purpose. Pruning is usually without interference from the leaves and also it is very unlikely that the cuts you make will bleed. If this does happen, it is, of course, impossible to paint them properly.A good gardener prunes a tree__________.A.at intervals throughout the yearB.as quickly as possibleC.occasionally when necessaryD.regular every winter
What action should you execute if you wanted to enable VTP pruning on your entire management domain？（）A、 Enable VTP pruning on any client switch in the management domain.B、 Enable VTP pruning on any switch in the management domain.C、 Enable VTP pruning on every switch in the management domain.D、 Enable VTP pruning on a VTP server in the management domain.E、 Disable VTP pruning on a VTP server in the management domain.
Switch R1 is part of the Company VTP domain. What’s true of VTP Pruning within this domain？（）A、It does not prune traffic from VLANs that are pruning-ineligibleB、VLAN 1 is always pruning-eligibleC、It will prune traffic from VLANs that are pruning-ineligibleD、VLAN 2 is always pruning-ineligibleE、None of the other alternatives apply
The Company network administrator needs to enable VTP pruning within the Company network. What action should a network administrator take to enable VTP pruning on an entire management domain？（）A、Enable VTP pruning on any switch in the management domainB、Enable VTP pruning on any client switch in the domainC、Enable VTP pruning on a VTP server in the management domainD、Enable VTP pruning on every switch in the domainE、None of the other alternatives apply
In which cases is reference partitioning effective in enhancing performance?（）A、It is effective only in partition pruning.B、It is effective only in partitionwise joins provided that the query predicates are different from the partitioning key.C、It is effective in both partition pruning as well as partitionwise joins provided that the query predicates are identical to the partitioning key.D、It is effective in both partition pruning as well as partitionwise joins irrespective of whether the query predicates are different from or identical to the partitioning key.
单选题What action should you execute if you wanted to enable VTP pruning on your entire management domain？（）A Enable VTP pruning on any client switch in the management domain.B Enable VTP pruning on any switch in the management domain.C Enable VTP pruning on every switch in the management domain.D Enable VTP pruning on a VTP server in the management domain.E Disable VTP pruning on a VTP server in the management domain.
单选题The author’s neighbor mentioned in the last paragraph most cared about _____Awhen spring would arrive.Bhow to pass the long winter.Cthe neighborhood gathering.Dthe pruning for the apple tree.
单选题The author’s purpose in writing the passage is _____.Ato persuade young children not to worry about criticismBto stress the importance of positive reinforcement to childrenCto discuss the skill of combining criticism with encouragementDto teach young athletes how to avoid burnout
单选题What is the purpose of the author in writing the passage?ATo describe different kinds of phobias.BTo expound phobia and their possible treatments.CTo help the phobia sufferers to get better.DTo tell readers how to prevent such phobias.
单选题The author’s purpose in writing this passage is to tell ______.Areaders how to he popular with people aroundBteenagers how to learn to make a decision for themselvesCparents how to control and guide their childrenDpeople how to understand and respect each other
单选题What was the author’s purpose when writing this passage? _____ATo give practical instruction for pruning a tree.BTo give a general description of pruning.CTo explain how trees develop diseases.DTo discuss different methods of pruning.
单选题What is the purpose of the passage?ATo tell us just to be ourselves in social lifeBTo introduce ways to learn about the worldCTo explain how people communicate with othersDTo encourage us to meet people of different kinds
单选题The author’s purpose in writing this passage is to tell _____.Areaders how to be popular with people aroundBteenagers how to learn to make a decision for themselvesCparents how to control and guide their childrenDpeople how to understand and respect each other
单选题The Company network administrator needs to enable VTP pruning within the Company network. What action should a network administrator take to enable VTP pruning on an entire management domain？（）AEnable VTP pruning on any switch in the management domainBEnable VTP pruning on any client switch in the domainCEnable VTP pruning on a VTP server in the management domainDEnable VTP pruning on every switch in the domainENone of the other alternatives apply
单选题Switch R1 is part of the Company VTP domain. What’s true of VTP Pruning within this domain？（）AIt does not prune traffic from VLANs that are pruning-ineligibleBVLAN 1 is always pruning-eligibleCIt will prune traffic from VLANs that are pruning-ineligibleDVLAN 2 is always pruning-ineligibleENone of the other alternatives apply
单选题Pruning should be done to _____.Amake the tree grow tallerBimprove the shape of the treeCget rid of the small branchesDmake the small branches thicker