题目内容
（请给出正确答案）
Why did the country mentioned in the passage suffer from floods and starvation？
A．Because nothing remains on land except floods.
B．Because there are no longer trees to keep the rain and protect the top-soil.
C．Because too much rain sinks in and washes away the top-soil.
D．Because roots of the trees break up the soil.
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更多“Why did the country mentioned …”相关的问题
Why did the country mentioned in the passage suffer from floods and starvation？
A．Because an empire was set up.
B．Because the empire fell to pieces.
C．Because it lost its trees.
D．Because too much had been spent on wars.
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A．boring
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C．bore
D．boredom
Why was the American surprised at the Chinese student's answer？
A．Because he wondered whether the student could really speak good English.
B．Because he could hardly hear what the student had said.
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-Because she had an important meeting to attend that day.
A.tur down
B.put away
C.dress up
D.pick up
Why did the flames spread quickly？
A．The oven became very hot.
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Why is it unusual that Irving was granted an honorary degree from Oxford？
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Why did ancient people usually live where there were plenty of trees？
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C．Trees were material for burning and building houses.
D．Trees provided them with fruit and food.
Why did Sturgeon's electromagnet could support nine pounds of iron？
A. Because the iron rod was bent into the shape of a “horseshoe”.
B. Because the rod was coated with varnish.
C. Because a layer of copper wire was wrapped around the rod.
D. Because the rod was made magnetic by the passing current.
