对致癌物最敏感的时期是( ) A.着床前期 B.器官形成期 C.胎儿期 D.

题型:单项选择题

问题:

对致癌物最敏感的时期是( )

A.着床前期
B.器官形成期
C.胎儿期
D.围生期

考点:医疗卫生系统招聘考试公共卫生管理专业知识医疗卫生系统招聘考试公共卫生管理专业知识
题型:单项选择题

Jim is a young farmer. He was once put into prison( 监狱).

One day, he got a letter from his mother. “ I’m so worried about our farm,”she wrote.”it’s time to plant potatoes. I can’t dig (挖 ) all the fields(田地 ) by myself.”

Jim read the letter and became sad. “ What can I do?” he thought. Then he had a good idea. He wrote to his mother,” don’t dig the fields. There is much money in the earth. Don’t plant potatoes until I come home.”

Some days later, Jim got another letter from his mother. It said, “ Two days ago, about ten men came to our farm and dug all the fields. I can’t understand it. It seemed that they were looking for something. What should I do?”

Jim smiled when he read his mother’s letter. He wrote a letter to his mother at once. It was very short. Guess what it would say.

小题1:Jim’s mother was much worried about___________.

A.him

B.their farm

C.the potatoes

D.the money小题2:In the letter to his mother, Jim told his mother not to______.

A.dig the fields

B.dig for the money

C.ask others for help

D.go to the prison to see him小题3:Jim’s mother told him that about ten men came to dig their fields. These men might be_____.

A.farmers

B.Jim’s friends

C.prison guards( 监督员)

D.Jim’s brothers小题4:What would it say in Jim’s second letter?

A.I will go out of prison very soon.

B.You can plant potatoes now, dear mother.

C.I can’t help you, dear mother.

D.The guards will plant potatoes.

题型:单项选择题

全球网络所必备的5种属性,这些属性是调整服务质量种类、______、移动性、扩展性和安全性。

题型:单项选择题

黄疸与萎黄的区别在于

A.身黄
B.尿黄
C.目黄
D.苔黄
E.以上都不是

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路基的日常养护与维修的内容有哪些?

题型:单项选择题

输液时对小儿及昏迷等不合作病人,可采取

A.局部肢体用夹板固定
B.加快输液速度
C.加强巡视,听取病人主诉
D.暂不输液
E.少量输液

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