单项选择题

Some people insist on finding fault with the results of other people’s work, without ever making a constructive contribution to their efforts.（）

A．有些人对别人的工作成果只会挑毛病，却从未提出过什么建设性的意见。
B．有些人只会对别人的工作成果百般挑剔，自己却从未有任何建树。
C．有些人坚持认为，对别人的工作成果就应多挑刺，因为他们的努力没有任何建设性的贡献。
D．有些人只会对别人的工作成果求全责备，从未做出任何建设性的贡献和努力。

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