What was the possible reason for the shuttle disaster?
A.Columbia could not survive reentry.
B.A block of foam damaged a wing.
C.The aircraft disintegrated in the sky.
D.The external tank was made of reinforced carbon.
第1题
According to Johnson, how much money is the EPA currently spending?
A.750,000,000.
B.700,500,000.
C.7.05e+008
D.7.55e+008
请帮忙给出正确答案和分析,谢谢!
第2题
What can we know according to the passage?
A.Great glaciers are very destructive.
B.All glaciers move southward.
C.The Mississippi-Missouri-Ohio system is larger than it was before the Ice Age.
D.The Great Lakes are now smaller than they were before the Ice Age.
请帮忙给出正确答案和分析,谢谢!
第3题
What made it possible for the American women to have the custom of wearing lace veils at weddings?
A.The increased appreciation of lace.
B.The importation of lace.
C.The invention of the lace making machine.
D.The importation of lace making machines.
请帮忙给出正确答案和分析,谢谢!
第4题
What is the attitude of the neighbourhood to the newcomers?
A.They are indifferent to them.
B.They never speak to them.
C.They try to be friendly to them.
D.They don"t want to know them.
请帮忙给出正确答案和分析,谢谢!
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