全面质量管理中常用的统计方法是什么？
参考答案：
分层法；排列图法；因果分析法；直方图法；控制图法。
癃闭的治疗原则，应着重于
A．清
B．通
C．攻
D．下
E．利
— The thread of my kite broke and it flew away.
— I told you it would easily break________it was the weakest.[ ]
A. when
B. for
C. since
D. where
hen