滚动轴承内圈转动,外圈固定,承受方向固定的径向负荷作用,则内圈相对于负荷方向静止。( )
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滚动轴承的公差等级从0~2级,2级精度最高,0级精度最低。( )
A. 对
B. 错
普通螺纹精度标准对直径、螺距、牙型半角分别规定了公差等级。( )
A. 对
B. 错
When you decide to take a summer job, you should consider all the following factors EXCEPT for___.
A. the hours
B. the pay
C. the type of colleagues
D. the location
What is meant by "hitting the pavement" in the fifth paragraph?
A. Fixing the pavement on the side of the road.
B. Hitting someone on the pavement.
C. Working hard to get the job.
D. Working hard on the pavement.
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