HowdoesChrisimpressTwistleonthetaxiinthefilm ThePursuitofHappyness?
A. Hefinishesthemagiccubewhichisverydifficultformostpeople.
B. HetellsTwistlehisexperienceinthepast.
C. HetellsTwistlehowmuchhelikesthisjob.
D. HetellsTwistlethatheisasinglefatherandhehastosupportthefamily.
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During the internship, why does Chris have much fewer working hours than others?
A. He has to do a lot of favors for his director.
B. He has to make more phone calls than other people.
C. He is always interrupted by other people.
D. He has to pick up his son and rush to the church.
Why does the CEO invite Chris and his son to watch football with him?
A. He is moved by Chris’s sincere attitude.
B. He likes Chris’s son.
C. He has no companion to the football game.
D. He wants to know more about Chris’s family.
带传动的打滑多发生在大带轮上。
A. 对
B. 错
带传动时只要不超载，弹性滑动和打滑都可避免。
A. 对
B. 错
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