The project funded by the National Science FoundationA.was first proposed by some engineer

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The project funded by the National Science Foundation

A.was first proposed by some engineers at UB

B.took about two days to complete.

C.was to investigate the damage caused by the terrorist attack.

D.was to find out why some buildings could survive the blasts.

请帮忙给出正确答案和分析,谢谢!

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