21. Scientists who work in the field say there are several possible ways that the drug could have triggered
multiple organ failure.
(A) traveled
(B) treated
(C) prompted
(D) prevented
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統計: A(4), B(24), C(214), D(8), E(0) #1412764
統計: A(4), B(24), C(214), D(8), E(0) #1412764