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【判断题】
圆柱齿轮传动中，当齿轮的直径一定时，减小齿轮的模数、增加齿轮的齿数，则可以提高齿轮的弯曲强度。()A.
正确
B.
错误
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举一反三
【简答题】哪位运动员实现了我国在奥运史上金牌的“零的突破” ( )
【简答题】These students have learned to (适应新环境). (adapt to)
【单选题】These students have little_____for how others look at them.
A.
thinking
B.
thought
C.
concern
D.
consideration
【单选题】Teenagers are under a lot of pressure to be thin. They are led to believe that the only way they can be accepted and fit in, is if they are thin. They resort to starving, vomiting and eating only diet...
A.
Fashion shows.
B.
Two famous places in America.
C.
Popular TV shows.
D.
Two TV channels.
【单选题】Teenagers are under a lot of pressure to be thin. They are led to believe that the only way they can be accepted and fit in, is if they are thin. They resort to starving, vomiting and eating only diet...
A.
Fashion shows.
B.
Two famous places in America.
C.
Popular TV shows.
D.
Two TV channels.
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