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It has been proved that once______oxygen, the brain dies.A、deprived ofB、having
It has been proved that once______oxygen, the brain dies.A、deprived ofB、having
游客
2024-10-13
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问题
It has been proved that once______oxygen, the brain dies.
选项
A、deprived of
B、having deprived of
C、depriving of
D、deprived
答案
A
解析
该题是语法结构题,考查复合句中的省略。在as if,if,once,when,while等引导的从句中,如果谓语动词为be或谓语部分的第一个动词为be,而主语又与主句的主语相同,那么从句的主语和动词be通常省略。该句完整的结构是:Once it(the brain)is deprived of oxygen,the brain dies.又如:While recovering from influenza,you should keep from getting wet or overtired.在流感康复的过程中,你要注意避免出汗或者过度劳累。因此,根据题意和语法规则,选项A为最佳答案。
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