18. Talk to anyone in the drug industry, ___________you'll soon discover that the science of genetics is the biggest thing to hit drug research since penicillin was discovered.
(A) or
(B) and
(C) for
(D) so
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統計: A(0), B(1), C(0), D(0), E(0) #3363559
統計: A(0), B(1), C(0), D(0), E(0) #3363559