23. ______ a global nuclear war, life on earth as we know it would end forever.
(A) There should be
(B) If there will be
(C) If there had been
(D) Should there be
(E) Had there been

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統計： A(2), B(11), C(7), D(46), E(6) #939482

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#3935691
Should there be a gl...
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