45. What is the author’s attitude toward the effect of global warming on human beings?
(A) Suspicious.
(B) Optimistic.
(C) Concerned.
(D) Indifferent.
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統計: A(22), B(21), C(103), D(8), E(0) #2552207
統計: A(22), B(21), C(103), D(8), E(0) #2552207