问题
判断题
比旋度是偏振光通过长1dm,并每毫升中含旋光物质1g的溶液时,在一定波长与温度下测得的旋光度。
答案
参考答案:对
比旋度是偏振光通过长1dm,并每毫升中含旋光物质1g的溶液时,在一定波长与温度下测得的旋光度。
参考答案:对
假定你是灵溪二高高一(6)班的学生李明。最近你收到了居住在新加坡的笔友Mike寄来的一封信。请你应他的要求,根据表格的内容写一封回信,谈谈学校的生活。
Dear Mike, I was very glad to receive your letter on Jun. 15th. At your request, I’ll tell something about my school life. I’ll appreciate it if you can tell me something about your school life in your next letter. I’m looking forward to it. With best regards. Yours truly, Li Ming |