在双链DNA分子中,已知A≠C,下列各项正确的是:()
A.
B.
C.
D.
参考答案:B
新建、扩建、改建建设项目和技术改造、技术引进项目可能产生职业病危害的,建设单位在可行性论证阶段应当向什么部门提交职业病危害预评价报告?
写作
你校英语外籍教师Emesto and Stasi暑假期间准备在本地开一家西餐小店,要招若干名高中生为无酬打工人员。下面是招聘启事:
Wanted!
4 middle school students
Do service work and act as translators
Healthy and helpful
Contact:wfpub@gmail.com
假定你叫李华,愿意应聘。请写封电子邮件,介绍自己, 并说明你愿意应聘的理由。词数110左右。开头已写好,不计入总词数。
Dear Emesto and Stasi,
I happened to have read your advertisement and decide to apply for the job.
________________________________________________________________________
__________________________________________________________________________
Yours sincerely,
Li Hua