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单项选择题
单选题-与异丙肾上腺素比较，沙丁胺醇的突出优点是（）
A.对β2受体的作用明显强于β1受体
B.兴奋心脏作用与异丙肾上腺素相似
C.气雾吸入起效快
D.对α受体无作用
E.以上都不是
B.兴奋心脏作用与异丙肾上腺素相似
C.气雾吸入起效快
D.对α受体无作用
E.以上都不是
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问答题
Welcome to the Midville City museum. This month we have a special display of colonial eraW
elcome to the Midville City museum. This month we have a special display of colonial era items. Please visit our special gallery to see the collections of seventeenth-century clothing, furniture, and weapons. Be sure to come early, however, as this is a very popular exhibit.
答案：
The Midville City museum is hosting a special display of col...
