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【单选题】
细长压杆的（ ），则其临界应力σ越大。A.
弹性模量 E 越大或柔度λ越大
B.
弹性模量 E 越大或柔度λ越小
C.
弹性模量 E 越小或柔度λ越小
D.
弹性模量 E 越小或柔度λ越大
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反馈参考答案：
举一反三
【单选题】It is reported _____ great changes have been made with the application of the new policy.
A.
which
B.
that
C.
while
D.
what
【简答题】新建一个大小为600*400像素的文件,背景填充浅黄色,再利用所给素材对照样张进行操作。
【单选题】What will happen in January?
A.
A new work time will be issued.
B.
The new policy will go into effect.
C.
The current health care plan will expire.
D.
The personnel department will address any problems.
【单选题】New businesses _________ in this area due to the new policy adopted recently.
A.
thrive
B.
succeed
C.
complete
D.
achieve
【单选题】What is the new policy of Blue Sky Airlines?
A.
Someone who carries heavy luggage, pay more than someone who carries light one.
B.
Air fare depends upon how much a person weighs.
C.
Blue Sky Airlines has opted to charge extra for someone who is above the average in height.
D.
Blue Sky Airlines set a new policy about the seat.
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