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C、refer to D、go over 正确答案:

第23题,By law, when one makes a large purchase, he should have ________ opportunity to change his mind. A、accurate B、urgent C、excessive D、adequate

第24题,It is our ________ policy that we will achieve unity through peaceful means. A、consistent B、continuous C、considerate D、continual 正确答案:

第25题,These surveys indicate that many crimes go ________ by the police, mainly because not all victims report them. A、unrecorded

B、to be unrecorded C、unrecording

D、to have been unrecorded 正确答案: