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【单选题】
一个自重为 G 的滑块置于与水平面间呈 α 角的斜面上, 如下那种情况下将发生自锁? ( 摩擦角记为 φ ) ____ 。A.
α < 90 ° - φ
B.
α φ
C.
α > φ
D.
α > 90 ° - φ
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【单选题】It’s generally assumed that daily conversation both in English and Chinese is almost never formal.__________
A.
T
B.
F
【单选题】In referring to animals and birds, the Chinese practice is generally, but not always, to use “ 公 ” or “ 母 ” to show whether a creature is male or female. This is the same with the English language.
A.
T
B.
F
【多选题】which of the following choices are the key points of cheongsam?
A.
It has a long history
B.
I t is an exquisite Chinese dress
C.
Easy to slip on and comfortable to wear
D.
The measurement of body generally requires only 4 positions on the body
【简答题】The formation of ____ is an important turning-point in Chinese character history because it lays a foundation for the squa re shape of Chinese characters. In structure and rectilinearity, i t is gener...
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