__________ you understand the rule, you will have no further difficulty.A.WhileB.OnceC.ThoughD.Unle

题目简介

__________ you understand the rule, you will have no further difficulty.A.WhileB.OnceC.ThoughD.Unle

题目详情

__________ you understand the rule, you will have no further difficulty.
A.WhileB.OnceC.ThoughD.Unless
题型:单选题难度:偏易来源:不详

答案

B
本题考查连词的区别辨析。once指的是“一旦”。

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