税收制度的内容包括税种的设计、各个税种的具体内容，如（）。
A.征税对象
B.纳税人
C.税率
D.纳税地点
E.纳税期限
参考答案：A, B, C
— Which of these English CDs do you think I should buy, sir?
— ________ You're supposed to have ideas of your own. [ ]
A. It's up to you.
B. That's settled.
C. With pleasure.
D. I've got that.
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