We have been told that the contract in question is ______ for one year starting

游客2023-10-11 52

问题 We have been told that the contract in question is ______ for one year starting from the fifteenth of June of this year.

选项 A、useful
B、efficient
C、practical
D、effective

答案 D

解析 useful有用的/efficient有效率的，能干的/practical实用的/effective有效的，例如：When does the new system become effective?新制度何时生效?

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