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【单选题】
—We will hold a wonderful picnic for you when Chidren’s Day 。A.
comes
B.
will come
C.
is coming
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【简答题】临界夜长 名词解释
【简答题】当临界应力σ cr 小于______时，轴心受压杆属于弹性屈曲问题。
【单选题】It is believed tha if a book is __________, it will surely __________ the reader. [ ]
A.
interested; interest
B.
interesting; be interested
C.
interested; be interesting
D.
interesting; interest
【简答题】临界夜长
【单选题】若σ cr 表示细长柱的临界应力，则下列结论中______是正确的。
A.
σ cr 与临界荷载和柱的横截面积有关，与柱体材料无关
B.
σ cr 与柱的长细比λ有关，与柱的横截面积无关
C.
σ cr 与柱体材料和横截面的形状尺寸有关，与其他因素无关
D.
σ cr 的值不应大于柱体材料的比例极限σ p
【判断题】Ionesco believed that not only absurd plays can reflect the mechanical nature of modern civilization. ____ Multiple Choice:
A.
正确
B.
错误
【单选题】No one believed his reason for being late he was caught in a traffic jam, made him embarrassed.
A.
that; which
B.
why; which
C.
why; what
D.
that; what
【简答题】(3分)临界夜长(critical dark length)
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