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搜题
【单选题】
可引起反射性呕吐的心脏病是A.
风心病
B.
高血压性心脏病
C.
急性心肌梗死
D.
肺源性心脏病
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反馈参考答案：
举一反三
【单选题】What will passengers have to do if their baggage is over the free allowance?
A.
To pay extra money.
B.
To carry it themselves.
C.
To ask for special permit.
D.
To drop the excessive item.
【简答题】产生不必要需求的原因主要是:
【多选题】与普鲁卡因相比，利多卡因不易水解的主要原因是
A.
利多卡因在水中的溶解度小于普鲁卡因
B.
酰胺键比酯键稳定
C.
酰胺键邻位两个甲基的空间位阻效应
D.
药用盐酸盐
E.
溶液显碱性
【简答题】What is the free baggage allowance for a first-class passenger?
【判断题】Since there is free baggage allowance, excess baggage will not be charged by the airline.
A.
正确
B.
错误
【简答题】What will passengers have to do if their baggage is over the free allowance? A) To pay extra money. B) To carry it themselves. C) To ask for special permit. D) To drop the excessive item.
【简答题】free baggage allowance
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