阿摩線上測驗
18. If these strict measures had not been taken, there _____ a widespread transmission of H2N5.
(A) would be
(B) had been
(C) would not have
(D) would have been
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統計： A(33), B(3), C(19), D(144), E(0) #810256
統計： A(33), B(3), C(19), D(144), E(0) #810256
