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【单选题】
，70岁，晨起锻炼时不慎将手指擦伤，随即返回家中，进行自行处理。的行为属于A.
自我治疗
B.
自我护理
C.
自我观察
D.
自我预防
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皮皮学刷刷变学霸
举一反三
【单选题】---- I’m so sorry that I made your computer stop working. ---- _______. I can repair it myself.
A.
No big deal.
B.
Don’t say that.
C.
Not at all.
D.
Of course not.
【简答题】语法填空: Since 61 first fully artificial plastic was invented in 1907, humans 62 (find) innumerable uses for the material. It has found 63 (it) way into our tools, our clothes and even our bodies. In a n...
【单选题】— You can repair your bike. It's not broken enough, Jack. — I'd rather ________ a new bike than ________ it. [ ]
A.
buy; repair
B.
buy; to repair
C.
to buy; repair
D.
to buy; to repair
【简答题】常用蜗杆的头数为____头,用于 自锁作用的蜗杆应选用____头。
【简答题】常用蜗杆的头数为( ),用于自锁作用的蜗杆应选用( )头。
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