单选:以下关于认证的说法错误的是()。 题目分类:管理学 题目类型:单选 查看权限:VIP 题目内容: 以下关于认证的说法错误的是()。A.管理体系认证是自愿认证B.中国的"3C"认证是强制认证C.合格认证只适用于产品D.安全认证属于强制认证 参考答案:
Enough sleep is important to health.The amount of sleep(21)depends on the age of Enough sleep is important to health.The amount of sleep(21)depends on the age of the per-son and the 分类:管理学 题型:单选 查看答案
Some villagers were going to celebrate an important wine festival(酒宴)in a few da Some villagers were going to celebrate an important wine festival(酒宴)in a few days′time,so?they borr 分类:管理学 题型:单选 查看答案