精密水准测量要求每测段进行往测与返测,且往、返测沿同一路线。( )四、多选题
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Choose the anwer that correctly interprets the sentecne from the text.We need to conserve our resources to buy ourselves time so scientists can find new solutions to our problems.
A. We need to conserve our resources so that the resources will probably last longer and scientists can find new solutions to our problems.
B. We should conserve our resources and we can buy the resources from other countries, so scientists can find new solutions to our problems.
The reason energy and water sit at the top, ahead of food and poverty, is that addressing them makes subsequent problems easier to deal with. (Para. 5)
A. Energy and water are the top two problems ahead of food and poverty on the list. The reason is that these problems are more difficult to solve than the other problems that follow them.
B. Energy and water are the top two problems ahead of food and poverty on the list. The reason is that if we start to solve these problems, the other problems that follow them on the list will be easier to deal with.
Climate change is expected to intensify droughts and floods while shifting where water will be and when.
A. Climate change will make droughts and floods worse. It will also change where and when rain will fall.
B. Climate change is supposed to make droughts and floods worse. It will also change where and when you can find water.
That means humanity will be confronted with decisions about whether to move people to water or water to people.(para 7)
A. That means humanity will have to decide whether to move people to places where there is water or move water to places where humans live.
B. That means humanity will be confronted with problems about how to move people or how to transfer water .
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