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

发布时间：2020-08-17 08:24:04

     you understand the rule, you will have no further difficulty.
A. While
B. Once
C. Though
D. Unless

网友回答

A. While
(答案→)B. Once
C. Though
D. Unless
解析：A. While当…时候，虽然，然而，B. Once一旦， C. Though虽然，D. Unless除非，句意：一旦你理解了规则，你就不会有困难了。根据句意选B。
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