The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a ______．A.Grip jointB.Strap jointC.Thread jointD.Lap joint
The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a ______．
A.Grip joint
B.Strap joint
C.Thread joint
D.Lap joint
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At the edge of the land lies the ocean, ____ the earth is covered with water. A.whichB.thatC.whereD.when
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共用题干A Very Slow RideThe surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carriedEurope and most of Asia. This caused the Himalayas,the world's highest mountains.The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The SanAndreas Fault in California is a good example of this type of movement. This passage is mostly about______.A: effects of movements of the earth's platesB: different types of continentsC: the Marianas TrenchD: transform faults
共用题干A Very Slow RideThe surface of the earth may seem very stable to you.But you might be amazed if you knew some of the things that are going on under that surface.The earth has an outer shell of rigid pieces called tectonic plates（地壳构造板块）.The plates include both ocean floor and dry land.Some have whole continents on top of them. The con-tinents on top of the plates are just going along for a slow ride,moving only about four inches per year. But even this small movement causes three types of big interactions.One type is ocean ridges.These ridges develop in places where two plates are moving away from each other. As the plates separate,hot magma（岩浆）flows up to fill the space. New crust （地壳）builds up on the plate boundaries and causes ocean ridges. These ridges form long moun-tain ranges,which only rise above the ocean surface in a few places.Another type of reaction-trenches-occurs between two plates that are moving toward each other. As the plates meet,one bends downward and plunges underneath the other. This forms deep ocean trenches. The Marianas Trench off Guam in the western Pacific Ocean has a depth of more than 36,000 feet. This is the lowest point on the ocean floor. If the leading edges of the two colli- ding plates carry continents , then the layers of rock in the overriding plate crumple（变皱）and fold .A plate that carried what is now India collided with the southern edge of the plate that carriedEurope and most of Asia. This caused the Himalayas,the world's highest mountains.The third reaction is transform faults（转换断层）.These faults occur where two plates that are traveling in opposite directions slide past each other. Severe earthquakes can occur. The SanAndreas Fault in California is a good example of this type of movement. According to the passage,the earth is______.A: always changingB: becoming smallerC: moving fasterD: getting hotter
共用题干第二篇Good Table MannersManners play an important part in making a favorable impression at the dinner table. Here are some general rules:Napkin（餐巾）useThe meal begins when the host unfolds his or her napkin.This is your signal to do the same,so place your napkin on your lap.Unfold it completely if it is a small napkin,or in half , lengthwise（纵向地）,if it is a large dinner napkin.If you need to leave the table during the meal,place your napkin on your chair as a signal to your server that you will be returning.Once the meal is over,place your napkinneatly on the table to the right of your dinner plate.Do not refold it.Use a napkin only for your mouth.Never use it for your nose,face or forehead.Use of utensils（餐具）Start with the knife,fork or spoon furthest from your plate,and work your way in,using one utensi!for each course.If soup is served,remember to spoon away from yourself.This helps stop the drips. Do not put the entire soup spoon in your mouth.Instead,fill a soup spoon about 75 percent with soup,and sip（吸饮）it from the side noiselessly.After finishing dinner,place the尽nife and fork parallel to one another across the plate with the knife blade facing inward toward the plate.Using your fingers Here's a list of finger foods:sandwiches,cookies,small fruits or berries with stems, French fries and potato chips,and hamburgers.Chew（咀嚼）with your mouth closed don't make noise;don't talk with your mouthfull.Bread must be broken with your hands. Itis never cut with a knife.Don't pick something out of your teeth.Instead,excuse yourself to have both handsabove the table at the same time.Do not put bones or anything else on the table.Things that are not eaten should be puton your plate.Which utensil is used first?A:The knife.B:The fork.C:The spoon.D:The one farthest from the plate.
晶格化的实质是将实体的Edge（边）次对象转化为杵件，将实体的Vertex（节点）次对象转化为（）A、joint（晶格节点）B、join（晶格节点）C、joint（网格节点）D、join（对象节点）
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单选题The type of joint formed when an edge of one plate is laid over the edge of the plate to which it is riveted is a（）.Agrip jointBstrap jointCthread jointDlap joint
单选题The joint formed when two steel plates are placed end-to-end is called a（）.AbevelBseamCbuttDbond
单选题A number of cylinder liners are enclosed in one cast iron casing to form a （）.Acylinder coverBcylinder blockCcylinder frameDbed-plate
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单选题The type of joint formed when a third small plate is riveted over two plates butted together is called a（）.Abutted jointBlap jointCstrap jointDstringer joint
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单选题How are riveted lap joints made watertight（）.AThe faying surfaces are coated with white lead（or similar product）before the rivets are setBA sealing weld bead of 1/8 or less pitch is run along the plate edgeCThe plate edge is split close to an adjacent plate and mechanically forced into contact with the adjacent plateDA properly riveted joint will be watertight; any leakage is stopped by setting up on the rivets
单选题Aother name for the “swash plate” in the variable delivery pump is（）Atiltable discBgravity discCdistributing discDcatch plate
单选题To reduce the number of strakes at the bow，two strakes are tapered and joined at their ends by a single plate. This plate is known as a（）.Acover plateBjoinerClap strakeDstealer plate
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单选题What does the OSPF command capability vrf-lite achieve？（）AIt enables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFBIt disables provider edge （PE） specific checks on a router when the OSPF process is associated with the VRFCIt enables the exchange of the VRF-Lite capability when the OSPF adjacency is formed.DIt disables the MPLS processing on the OSPF learned routes inside the VRF
单选题The man moved _____ forward and looked over the edge, shrinking his shoulders.AaccuratelyBcautiouslyCbrilliantlyDdisappointedly