-It took me nearly 5 years to make a breakthrough in my field.-- Well, you know wha

---- It took me nearly 5 years to make a breakthrough in my field.
---- Well, you know what people say. .
A. There is no smoke without fire.
B. Practice makes perfect.
C. All roads lead to Rome.
D. No pains, no gains.

A. There is no smoke without fire.B. Practice makes perfect.C. All roads lead to Rome.(答案→)D. No pains, no gains.解析：考查谚语。A无风不起浪；B熟能生巧；C条条大路通罗马；D不劳无获；根据句意可知应该选D，强调要付出努力。句意：—花了我几乎5年时间才在我的领域取得突破。—你知道人们说过的话：不劳无获。（付出了努力才会由收获）。

我好好复习下

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