She put down the receiver ______ she recognized my voice.A.the instant whenB.the instantC.

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She put down the receiver ______ she recognized my voice.

A.the instant when

B.the instant

C.at the instant

D.until

请帮忙给出正确答案和分析,谢谢!

热搜:关于氨基酸代谢错误的论述是_________。