问题
选择题
A little knowledge is _______, because it can cause people to think they are more expert than they really are.
A．expensive
B．ordinary
C．precious
D．dangerous
答案
答案：D
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A little knowledge is _______, because it can cause people to think they are more expert than they really are.
A．expensive
B．ordinary
C．precious
D．dangerous
答案：D