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问题 单项选择题

资本总公式G—W—G′所表现出来的价值增殖和价值规律要求的矛盾，存在于

A．形式上

B．实质上

C．既存在于形式上又存在于实质

D．有时存在于形式上有时存在于实质上

答案

参考答案：A

问答题

丙酰乙酸异丙酯的结构式是（）。
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单项选择题

Questions 6 to 10 are based on the following news.

A. Insisting that the revelations were unlikely to affect world events.
B. Dismissing those diplomatic cables as untrue.
C. Purposely making some confidential materials public.
D. Effectively containing Iran’s nuclear program.
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