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【单选题】
图示中的悬臂梁采用两种截面形式,一种为相同的矩形截面叠放而成,无胶接;另一种为完整的正方形截面。在小变形的情况下迭放的最大弯曲正应力是完整截面形式的梁的最大正应力的 倍。A.
2
B.
4
C.
8
D.
16
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反馈参考答案：
举一反三
【简答题】n. 评论;解释;批评;指责; v. 表达意见;作出评论;
【单选题】More people visit the Air and Space Museum honoring men and women who have pioneered flight and the exploration of space than _____ any other monument or museum in the entire country.
A.
visit
B.
to visit
C.
visited
D.
visiting
【单选题】The smooth space flight, experts say, marks a big for Chinese
A.
breakthrough
B.
belief
C.
control
D.
question
【简答题】n. [C,U] 批评,批判,指责
【简答题】Looking back on China’s road to outer space, people can easily find it has not been very smooth. In the past years, Chinese people have made hard and determined efforts to realize the dream their ance...
【简答题】n.批评，批判，指责A. criticism
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