15. Most doctors agree that exercise is beneficial; _______ , there are doctors who think that excessive exercise may do some harm.
(A) therefore
(B) otherwise
(C) however
(D) for example

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統計： A(25), B(40), C(200), D(8), E(0) #1836634

詳解 (共 1 筆)

#3113542

（A）因此

（B）否則

（C）然而

（D）例如


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