一名合格的执业药师应在建议临床医师选择用药时必须把下列哪项放在首位
A．经济
B．简便
C．有效
D．安全
E．以上均不是
参考答案：D
Don’t keep silence! The head teacher is ___________a lot about that.
A．able to know
B．supposed to know
C．supposing to know
D．going to know
前牙金瓷修复体中，唇面瓷层厚度不少于（）
A.0.5mm
B.1mm
C.2mm
D.2.5mm
E.3mm
