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【判断题】
在曲轴前端装减震器（Damper）可以减少曲轴的扭转震动。
A.
正确
B.
错误
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举报参考答案：
举一反三
【单选题】根据圆轴扭转的平面假设，可以认为圆轴扭转时横截面（）
A.
形状尺寸不变，直线仍为直线
B.
形状尺寸改变，直线仍为直线
C.
形状尺寸不变，直线不保持直线
D.
形状尺寸改变，直线不保持直线
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
相关题目：
【单选题】根据圆轴扭转的平面假设，可以认为圆轴扭转时横截面（）
A.
形状尺寸不变，直线仍为直线
B.
形状尺寸改变，直线仍为直线
C.
形状尺寸不变，直线不保持直线
D.
形状尺寸改变，直线不保持直线
【单选题】The Grand Canyon Standing on the rim of the Grand Canyon(大峡谷), gazing across this giant wound in the Earth’’s suce, a visitor might assume that the canyon had been caused by some ancient convulsion...
A.
it was caused by some ancient convulsion
B.
its presence is an embarrassment to the state of Colorado
C.
it looks like an injury on the Earth’s suce
D.
it has caused many visitors to injure themselves
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