质量控制点是质量管理中运用“()的少数,()的多数”这一基本原理的具体体现。
参考答案:关键;次要
---- The exam was too difficult, wasn’t it?
---- Yes, ______ could not pass it.
A.somebody
B.anybody
C.nobody
D.everybody
干粉灭火器的有效射程约()m。
A.20
B.15
C.10
D.5