质量管理原则的具体内容包括( )。
A．以产品为关注焦点
B．领导作用
C．全员参与
D．管理的系统方法
E．过程方法
参考答案：B,C,D,E
--- Look! That teacher is explaining something to her students again and again.
--- _________ teacher she is.
A．How patient
B．What a patient
C．How stubborn
D．What stubborn
易于引起出血的邪气是（）
A.风
B.暑
C.湿
D.燥
E.火
