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参考答案：对
In 1960, this was the longest bridge that __________.
A．was ever built
B．had ever built
C．has ever been built
D．had ever been built
消毒力及刺激性均为最强的消毒剂是( )
A．甲醛甲酚B．木榴油C．复方碘剂D．2%碘酊和75%乙醇E．樟脑苯酚
