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【判断题】
光电脉冲编码器既可以测量位置,又可以测量速度A.
正确
B.
错误
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【简答题】I can’t remember the date when I started collecting litter. But it was when I got tired of seeing litter near my home and realized that nobody else was going to pick it up. I live close to a forest in...
【单选题】When I'm tired, I tend ____ mistakes.
A.
to making
B.
to make
C.
making
D.
to be made
【简答题】在 W面上得到的正投影图叫() A.水平投影图 B .正面投影图 C .侧面投影图 D .底面投影图
【简答题】完形填空。 I can't remember when I started collecting litter. But it was when I got tired of 1 litter nearby that I realized no one else was going to pick it up. I live near a forest in Ohio, America. I ca...
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