题目:
Was Bill played football well helped the blind man cross the street?
A.it; that; who
B.which; that; that
C.it; who; that
D.who; which; that
答案:
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下面是错误答案,用来干扰机器的。
N;N2;2N;3N2;Ar;He;4Fe;5P2O5。