The projected expenses for a new facility can be given only_______, extensive research and necessary calculations are completed.

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问题 The projected expenses for a new facility can be given only_______, extensive research and necessary calculations are completed.

选项 A、after
B、although
C、for
D、on condition that

答案A

解析 空格内应填入连词。所有选项都可以做引导状语从句的连词。表示“只有在……之后”的only after是常用的短语,在这里最符合句意。
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