A.增大由发动机产生的扭矩,有利于车辆起
B.起到自动离合器的作用,传递(或不传递)发动机扭矩至变速器
C.缓冲发动机和传动系的扭振,使发动机和传动系寿命延长
D.起到飞轮的作用,使发动机运转平稳
第1题
图示单元体.若σα =20MPa. 则σβ= .
A、80MPa
B、60MPa
C、20MPa
D、0
第6题
Choose two of the following questions and give brief answers in English Give explanations of the symbolic meaning of “Pequod” in Moby-Dick by Melville. Discuss the allegory and symbolism in Moby-Dick. Analyze the characters in Melville’s works. What’s Herman Melville’s “black” vision of life and human beings? Why do you think Longfellow can earn such a great popularity in the readers of the 19thcentury? Summarize Longfellow’s typical poetic features in your own words. Exemplify the optimistic feeling expressing in Longfellow’s poems.
第10题
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