皮皮学，免费搜题
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【单选题】
婴幼儿易患呼吸道感染的主要原因是A.
呼吸浅表
B.
呼吸频率快
C.
呈腹式呼吸
D.
呼吸道黏膜缺少SlgA
E.
鼻腔短小，狭窄，黏膜血管丰富
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举一反三
【简答题】根据所听句子，选出正确的答句并排序，将序号填在句前括号里。 ( ) That red one. ( ) Yes, it is. ( ) Yes, let's go. ( ) All right. ( ) It's eight. ( ) No, Tom is not here. ( ) She's a nurse. ( ) She's ...
【单选题】火眼金睛，选出合适的答句。 ( ) How many books do you have? ( ) Where is my book? ( ) How are you? ( ) Nice to meet you. ( ) What colour is it?
A.
Fine, thanks.
B.
It's purple.
C.
Nice to meet you, too.
D.
It's on the desk.
E.
Five.
【简答题】面团调制后放在案板上,盖上洁净湿布,静置一段时间,这个过程叫做( )。
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