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题目内容
（兰州交通大学-土木工程-大学英语3）
Many workers were organized to clear away _____________ remained of the World Trade Center.
得分/总分
A.
those
B.
that
C.
which
D.
what
得分/总分
A.
those
B.
that
C.
which
D.
what
参考答案
