问题
选择题
Those who think they know ______ really know _____.[ ]
A. something; nothing
B. everything; nothing
C. anything; something
D. nothing; anything
答案
答案：B
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Those who think they know ______ really know _____.[ ]
A. something; nothing
B. everything; nothing
C. anything; something
D. nothing; anything
答案：B