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举一反三
【单选题】In a country that defines itself by ideals, not by shared blood, who should be allowed to come, work and live here In the wake of the Sept. 11 attacks these questions have never seemed more pressing. ...
A.
evidence was found that they were potential terrorists
B.
most of them worked at airports under threat of terrorist attacks
C.
terrorists might take advantage of their illegal status
D.
they were reportedly helping hide terrorists around the airport