使用剧毒化学品必须有两人操作,并在剧毒化学品实验使用登记表上记录() A.用途、使用 发布时间:2019-02-15 16:25 │ 来源:www.tikuol.com 题型:单项选择题 问题: 使用剧毒化学品必须有两人操作,并在剧毒化学品实验使用登记表上记录()A.用途、使用量、剩余量B.成分、种类C.特性、组成
题型:单项选择题 CONVERSATION 2 (Questions 5-8)Jeff has lived in New York for (5) years.Jeff doesn’t like (6) , (7) and (8) of New York.CONVERSATION 2(Questions 5-8)The woman is working at the campus (5) office.The man can work at least (6) hours a week but not more than (7) hours a week from (8) on. 查看答案