题目内容

animation

A. able to be used
B. an area of study or activity
C. the art form of making pictures move, cartoons

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generate

A. to attract
B. to produce, to make
C. a big success

resign

A. able to be used
B. to step down from a position well liked
C. to do well

field

A. able to be used
B. an area of study or activity
C. a school term or period of time

当三线摆调至工作状态，忽略空气阻力时，下圆盘的扭摆运动可近似看成什么运动？

A. 简谐振动
B. 匀加速直线运动
C. 拉伸运动