问题
选择题
The changes in our chemistry lab will cost quite a lot, ____ they will save us money in the long run.
A．or
B．since
C．for
D．but
答案
D
根据题意,两个分句间为转折关系。in the long run意为“最终地”。
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The changes in our chemistry lab will cost quite a lot, ____ they will save us money in the long run.
A．or
B．since
C．for
D．but
D
根据题意,两个分句间为转折关系。in the long run意为“最终地”。