抑制磷酸二酯酶的平喘药是()
A.氨茶碱
B.色甘酸钠
C.溴化异丙托品
D.沙丁胺醇
E.硝苯地平
参考答案:A
In the 2004 Shanghai Industrial Fair, electronic equipment, good in both qulity and style, will be shown.
A.a large number of
B.a good many
C.masses of
D.supply of
公路路面抗滑性能指数用在公路技术状况评定中用()表示
A.RQI
B.SRI