单选题:对于某种或某类危险物质规定的数量,若单元中的物质数量等于或超过该数量,则该单元定为重大危险源的标准是( )。 题目分类:三级 题目类型:单选题 查看权限:VIP 题目内容: 对于某种或某类危险物质规定的数量,若单元中的物质数量等于或超过该数量,则该单元定为重大危险源的标准是( )。 参考答案: 答案解析:
The money most American firms put in training mainly goes to The money most American firms put in training mainly goes to 分类:三级 题型:单选题 查看答案
How should a person rest during an illness?He should rest bo How should a person rest during an illness?He should rest both his body and_____ 分类:三级 题型:单选题 查看答案