具有镇吐作用的药物有（）
A.氯丙嗪
B.苯海拉明
C.西米替丁
D.异丙嗪
E.东莨菪碱
参考答案：A
根压
Smoking does great harm to our health. ( ) is smoking allowed in public places.
A．In no time B．At a timeC．At all times D．At no time
