Turn off the water supply before carrying out repairs, __________ it's just a minor adjustment to the float arm.
(A) otherwise
(B) unless
(C) whereas
(D) therefore

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統計: A(74), B(149), C(77), D(14), E(0) #448208

詳解 (共 2 筆)

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(A) otherwise (conj.) 否則

(B) unless (conj.)  除非

(C) whereas (conj.) 然而、反之

(D) therefore (adv.) 因此、所以

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