What are the experts afraid will happen?A. The Northern Pike will die.B. The wells will be polluted.C. Poisons will kill the Northern Pike.D. The Northern Pike will swim into other lakes.
What are the experts afraid will happen?
A. The Northern Pike will die.
B. The wells will be polluted.
C. Poisons will kill the Northern Pike.
D. The Northern Pike will swim into other lakes.
相关考题：
The Good Friday Agreement, approved on 10 April 1998, assures the loyalist community that Northern Ireland remains part of the United Kingdom and it won’t change its political status unless the majority of the people Northern Ireland agree.()此题为判断题(对，错)。
Passage FiveThe Northern Pike is a very bad fish. It is a big, hungry fish, and swallows little fish such as trout and perch. Many Northern Pikes live in Lake Davis. They are killing all the smaller fish in the lake. The Northern Pike are a serious threat to the lake because they eat all the smaller fish. Soon, all other species of fish in the lake will be killed off. This is not healthy for the environment.Experts are afraid that the Northern Pike will swim out of Lake Davis through many smaller rivers that feed into the lake. They could spread all over the country and damage many other water environments. If that happens, it would be too late to stop the Northern Pike.For ten years, officials have been trying to remove the Northern Pike from Lake Davis. They haw. tried using nets, explosives and poisons. However, the Northern Pike population is still doing well in Lake Davis. Many people do not like the idea of using poison to kill the fish. They worry that the poi- sons are bad for humans who use the water. No trace of the poisons has ever been found in local wells, however.Scientists are going to try the poison again. This time, they will drain the lake before they add the poison to the water. A public hearing will be held to talk about the problem.52. Why are some people against the use of poisons to kill Northern Pike?A. Fishermen will be poisoned too.B. The poisons are expensive.C. They think that wells will be polluted.D. The lake will become unsafe.
which of the following statements is not true?A. The Northern states did not have racial discrimination.B. Segregation laws continued to be enforced in Southern states until the 1950s.C. The Northern states had outlawed slavery by 1830.D. Slavery was finally abolished in the South in 1865.
The circulation around a low pressure center in the Northern Hemisphere is ______.A.counterclockwiseB.variableC.clockwiseD.Anticyclonic
In the Northern Hemisphere, if the center of a high pressure area is due west of you, what wind direction would you expect?______.A.South to westB.South to eastC.North to westD.North to east
Which part of the European is still Catholic？( ) A.The southern and eastern two-thirds. B.The northern and western one-third. C.The Spanish-ruled Netherlands. D.The northern part approximating to modern Holland.
The two main islands of the British Isles are( ). A.Great Britain and Northern Ireland B.Great Britain and Northern Scotland C.Great Britain and Southern Wales D.Great Britain and Southern England
Canada is located in （）Athe Southern HemisphereBThe Northern HemisphereCthe Western HemisphereDThe Eastern Hemisphere
Northern Ireland,which takes up the northern fifth of Ireland,is a fourth political division of（）Athe United KingdomBIrelandCScotlandDWales
Ireland is divided into two political parts:（）.A、Northern Ireland and Southern IrelandB、Southern Ireland and the Republic of IrelandC、The Republic of Ireland and Northern IrelandD、Northern Ireland and Britain
When Albert Reynolds became Prime Minister in 1992,both Ireland and Britain agreed to hold regular meetings.（）A、to deal with the IRAB、to make preparations for a united IrelandC、to seek an end to the violence in Northern IrelandD、to improve relations with each other
Northern Ireland,which takes up the northern fifth of Ireland,is a fourth political division of（）A、the United KingdomB、IrelandC、ScotlandD、Wales
单选题Northern Ireland,which takes up the northern fifth of Ireland,is a fourth political division of（）Athe United KingdomBIrelandCScotlandDWales
单选题We are not yet near Hudson Bay. We have to go to the north far.Ato the farther north Bfar to the northern Cfarther northDfar northern
单选题What is the direction of rotation of tropical cyclones,tropical storms and hurricanes in the Northern Hemisphere?（）AClockwise and outwardBCounterclockwise and inwardCCounterclockwise and outwardDClockwise and inward
单选题What is affecting the refugees in northern Yemen, according to the news? ACold weatherBAn earthquakeCA flood
单选题What will a veering wind do（）.AChange direction in a clockwise manner in the Northern HemisphereBCirculate about a low pressure center in a counterclockwise manner in the Northern HemisphereCVary in strength constantly and unpredictablyDCirculate about a high pressure center in a clockwise manner in the Southern Hemisphere
单选题Generally speaking，in the Northern Hemisphere，when winds are blowing from between SE and SW the barometric reading（）.Amakes no change at allBis somewhat lower than it would be for winds from a northern quadrantCis uncertain and may fluctuate by increasing and decreasingDis somewhat higher than it would be for winds from the northern quadrant