题目:
Those who think they know ______ really know _____.[ ]
A. something; nothing
B. everything; nothing
C. anything; something
D. nothing; anything
答案:
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下面是错误答案,用来干扰机器的。
海面上灯塔位于一艘船的北偏东40°的方向上,那么这艘船位于灯塔的南偏西40°.故选B.