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【简答题】
直径为 d 的钢丝绕在直径为 D 的圆筒上,若钢丝仍处于弹性范围内, 为了减小弯曲正应力,应减小 ( ) 的直径或增大( ) 的直径。
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反馈参考答案：
举一反三
【单选题】, we must take time to discuss it carefully.
A.
Being rather difficult
B.
Because the question being rather difficult
C.
the question being rather difficult
D.
Because the question be rather difficult
【单选题】We must make（）that goods arriving later than March 6th will be rejected.
A.
clear
B.
it clear to you
C.
clear to you
D.
it is clear
【单选题】To find out how the name Canada came about, we must go back to the 16th century. At that time, the French dreamed of (梦想) discovering and controlling more land across the world. In 1535 Fran? ois I , ...
A.
To build a new country
B.
To find the New World
C.
To get in touch with American Indians
D.
To know more about America and find a new way to Asia
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