18. After a serious of man-made and nature disasters, blood donors are usually urgently needed to save more people’s lives.
(A) frankly
(B) desperately
(C) crucially
(D) typically
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統計: A(27), B(101), C(75), D(25), E(0) #566737
統計: A(27), B(101), C(75), D(25), E(0) #566737