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问题
多项选择题
心室颤动的症状体征不包括()
A.心音强弱不等
B.意识丧失
C.脉搏触不到
D.血压测不到
E.大汗淋漓
答案
参考答案:
A, E
选择题
— Did Oliver's parents leave him any money?
— No, he had to support _____.
A. on his own
B. all alone
C. by himself
D. himself
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填空题
采样的代表性与子样数()。
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