不参与抑酸作用的受体是()
A．H1受体
B．H2受体
C．PG受体
D．胃泌素受体
E．M1受体
参考答案：A
Those books were _______ adults, so it’s unnecessary for teenagers to digest them carefully.
A．devoted to
B．intended for
C．connected with
D．introduced to
过氧乙酸的保管和使用方法错误的是
A．用暗色带塑料容器盛装B．置于阴凉处C．配好各种浓度备用D．2%用于空气消毒E．不能浸泡金属类物品
