云南省陆良县2022~2023学年下学期高一期末考试(23-535A)英语试卷试卷答案答案正在持续更新，目前趣对答案为大家整理了相关试题及答案，供大家查缺补漏，高效提升成绩。

or smoke in the laboratory and you should always clean the table top and wash your hands before and after the class.Long hair must be tied up.Large clothing must be worn.And,finally,any laboratory accident must be reported immediately. I hope you'll enjoy the laboratory.It's a wonderful place but all these instructions are to be strictly followed.We will begin today by learning about the microscope.