The new machine is supposed to be the solution to all our production problems, but .
A. Practice makes perfect
B. The proof of the pudding is in the eating
C. Many hands make light work
D. I think, therefore I am
网友回答
A. Practice makes perfect
(答案→)B. The proof of the pudding is in the eating
C. Many hands make light work
D. I think, therefore I am
解析：考查英语习惯表达。A “熟能生巧”；B. “实践检验一切”；C. “众人拾柴火焰高”；D. “我思，故我在”。句意为：新机器按说能解决我们生产上的一切问题，然而能否做到这一点有待于实践的检验。