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【单选题】
切断家兔双侧迷走神经后,呼吸的变化是
A.
频率加快,幅度减少
B.
频率加快,幅度增大
C.
频率减慢,幅度增大
D.
呼吸减慢,幅度减小
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参考答案:
举一反三
【简答题】STEP1 Li Hua: Good morning, Mr. Black . Did you sleep well last night? Black: I slept like a log. And you? Li Hua: Just fine. I think we should discuss today's ________ . Black: OK. Li Hua: We'll driv...
【简答题】朗读以下短文 Early to bed, early to rise, makes a man healthy, wealthy and wise. This is an old English saying. Have you heard of it before? It means that we must go to bed early and get up early in the mor...
【简答题】一、根据句意及首字母提示补全单词。 1 . — Can you hear me, Mary? — Sorry , there’s too much n ______ here. 2.Don ’ t throw litter about. We should protect our e________. 3.My brother likes collecting old things, e_____...
【简答题】(2) Early to bed, early to rise, makes a man healthy, wealthy and wise . This is an old English saying. Have you heard of it before? It means that we must go to bed early and get up early in the morni...
【简答题】A. breakfast B. fit C. sleep E. keep F. exercise Health plays an important role in our life. To keep __ _ 1 ___and stay healthy, we should follow these tips. First, we should ____ 2...
【简答题】breakfast fit sleep keep exercise Health plays an important role in our life. To keep __ _ 1 ___and stay healthy, we should follow these tips. First, we should ____ 2 _____ a good d...
【单选题】We should sleep well _____ night.
A.
at
B.
in
C.
on
D.
from
【单选题】“顾客永远是对的”这句话反映的是()的特征。
A.
营销1.0时代
B.
营销2.0时代
C.
营销3.0时代
D.
营销4.0时代
【判断题】教育学研究的教育现象,它主要包括教育的社会现象和认识现象。
A.
正确
B.
错误
【判断题】作业岗位的设计须考虑操作动作的频繁程度,可以忽略作业者的群体。
A.
正确
B.
错误
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