题目内容

企业所得税的两档优惠税率分别为20%和15%。

A. 对
B. 错

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A. It is the only elective course available.
B. He is interested in chemistry.
C. It is a required course for him.
D. He is good at chemistry.

At ten a.m. Monday.
B. At ten p.m. Monday.
C. At nine a.m. Monday.
D. At nine p.m. Monday.

A. Tuesdays and Thursdays.
B. Monday and Wednesday afternoon.
C. Wednesday and Friday afternoon.
D. Friday afternoon.

A. In the lecture hall.
B. In the cafeteria.
C. At the admission office.
D. In the library.