3.The man enjoys modern music because he___________.
A. likes noise
B. thinks it is very exciting and enjoyable
C. is very interested in listening to all kinds of music
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4.The man does not have his favorite reading because he _______
A. also likes music
B. often changes his interest in reading
C. he spends much of his spare time reading
5.Which of the following is NOT true?
A. The woman likes jazz music.
B. The woman likes Mozart and Beethoven.
C. The woman thinks rock and roll too noisy.
平键链接的配合尺寸为（ ）
A. 键高
B. 键宽
C. 轴槽深
D. 轮毂槽深
内、外花键小径的极限尺寸遵守（ ）原则。
A. 包容
B. 最大实体
C. 最小实体
D. 独立
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