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【单选题】
下列有关平喘药沙丁胺醇的特点描述错误的是A.
选择性兴奋支气管平滑肌β\r\n 2 \r\n受体
B.
不被儿茶酚氧位甲基转移酶(COMT)灭活，作用持久
C.
久用不会产生耐受性
D.
对心脏β\r\n 1 \r\n受体作用弱
E.
可口服，用于防治哮喘
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】细菌的核糖体的沉降系数是（）
【单选题】The holding capability of an anchor is primarily determined by the _______.
A.
shape of the anchor
B.
stowage of the anchor on board
C.
anchor’s ability to dig in
D.
size of the vessel and her draft
【单选题】The holding capability of an anchor is primarily determined by the（）.
A.
shape of the anchor
B.
stowage of the anchor on board
C.
anchor's ability to dig in
D.
size of the vessel and its draft
【单选题】Each of my students has the capability of being an excellent student.
A.
possibility
B.
notability
C.
ability
D.
feasibility
【简答题】细菌的核糖体是由()的小亚基与()的大亚基组成沉降系数为的()基团。
【单选题】The holding capability of an anchor is primarily determined by the ______．
A.
Shape of the anchor
B.
Stowage of the anchor on board
C.
Anchor's ability to dig in
D.
Size of the vessel and its draft
【简答题】细菌的核糖体的沉降系数是 s
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