题目内容

沙丁胺醇治疗哮喘的主要药理作用为

A. 兴奋α受体
B. 兴奋β受体
C. 兴奋α、β受体
D. 兴奋β1受体
E. 兴奋β1、β2受体

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Quite often after dinner, they () music in a pub and () home about midnight.

A. are playing…are going
B. will play… are going
C. play…go

A: I saw Tom just now at the caféB:It ()be him. He went to U.S.A. yesterday.A. mustn&A: I saw Tom just now at the café
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A. mustn't
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You should not try to ____ while others are talking.

A. interrupt
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