液压防喷器的公称通径指液压防喷器能通过的()的外径。A、最小钻具 B、最大钻具 C、

题型:单项选择题

问题:

液压防喷器的公称通径指液压防喷器能通过的()的外径。

A、最小钻具

B、最大钻具

C、合适尺寸钻具

考点:土木建筑工程钻井设备钻井设备题库
题型:单项选择题

阅读短文内容和下面每个人的情况, 为他们选择各自合适的学校类别, 填写在横线上.

    Children's education is very important in England. Children begin with primary education at the age of

five, and this usually lasts until they are eleven. Then  they move to  middle schools. They stay there  until

they reach sixteen, seventeen or eighteen years old. After that, they can have higher education.

    The main kinds of school are: 

State Schools (公立学校)

    Parents don't need to pay for their children's schooling. 

Private Schools (私立学校)

    Parents pay for their children's education.

Primary Schools

    In the UK, primary schools are always close to children's houses. Children stay with the same group

throughout the day.

Middle Schools

    Most children go to the middle school nearest to their houses at the age of 11.

Public Schools (Private Schools)

    A public school is also called a private school. The most famous public schools are Eton, Harrow and

 Winchester. 7% of the children in England go to private schools. Parents pay for their children to go to

these schools.

Prep Schools

    A prep school is a school to prepare pupils to go to a public school. They are for kids between seven

and eleven or thirteen years old.

1. Steven is 12 years old. He wants to be a student in Eton School. _____________

2. Susan is 11 years old. She wants to go to the school nearest to her home.  ___________

3. John is 13 years old and his father is very poor. _____________

4. Lily is 5 years old. She lives with her mother, and her mother is very poor. ____________

5. Jack is 9 years old. He wants to pass the exam and go to a private school. ____________

题型:单项选择题

下列血细胞计数板的盖玻片的要求中,说法正确的是()

A.要求玻璃表面平滑

B.可以被细胞悬液所抬浮

C.厚度应为0.8mm±0.2mm

D.用一般盖玻片可以取代

E.盖玻片可以不用清洁

题型:单项选择题

良性肿瘤具有以下哪些特点()

A.分化较成熟,异型性小

B.生长缓慢

C.一般不呈浸润性生长

D.不转移

E.一般对机体无严重影响

题型:单项选择题

货物名称:按贸易合同或发票所列货物名称所对应的国家检验检疫机构制定的《检验检疫商品目录》所列货物名称填写。 ( )

题型:单项选择题

请问中医诊断为何病

A.心痛

B.眩晕

C.心悸

D.胃痛

E.痹证

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