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题目内容
（石家庄铁道大学大学英语Ⅲ）
The decision _____, what is to be done now is how to carry it out.
A、 been made
B、 has been made
C、 having been made
D、 having been making
A、 been made
B、 has been made
C、 having been made
D、 having been making
参考答案