当氯在空气中浓度达到()mg/m,()mg/m以上时将引起咳嗽,当升至()mg/m时 发布时间:2017-11-18 19:49 │ 来源:www.tikuol.com 题型:填空题 问题: 当氯在空气中浓度达到()mg/m,()mg/m以上时将引起咳嗽,当升至()mg/m时,深吸少许可危及生命。
题型:填空题 The plan ________. Which of the following is WRONG?[ ]A. deserves a discussion B. is worth discussingC. deserves being discussed D. deserves to be discussed 查看答案