螺母固定不动,螺杆回转并作直线运动的应用实例是 。 A . 千分尺 B . 车床大拖板 C . 应力试验机上观察镜螺旋调整装置 D . 牛头刨床工作台
A.
B.
C.
D.
D
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【单选题】Milk is processed by heating it to kill any unwanted bacteria and adding chemicals such as preservatives. Then it is ready to be consumed without any worry about safety. to process (verb)
A.
to prepare something by following a number of steps/stages.