题目内容
The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure.
A. a; the B. a; / C. a; a D. /; /
B

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题目内容
The medical reform in that country proved to be _____ failure, but as we know, success often comes after _____ failure.
A. a; the B. a; / C. a; a D. /; /
B