自然水循环锅炉的蒸发受热面中,受热存在不均匀现象,受热强的管子易发生(),受热弱的管

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问题:

自然水循环锅炉的蒸发受热面中,受热存在不均匀现象,受热强的管子易发生(),受热弱的管子易发生循环停滞和倒流。

考点:锅炉操作工考试锅炉操作工考试题库
题型:填空题

根据“五行学说”分析五脏病变相互影响,肝火犯肺证是()

A.子病犯母

B.相克

C.相乘

D.相侮

E.母病及子

题型:填空题

业主将设备工程项目的监理任务委托给了( ),其目的是要获得满意的监理效果,即在设备监理机构的监督下,使设备工程项目的承包商及工作结果达到业主的总目标的要求。

A.设备监理工程师

B.设备监理单位

C.总监理工程师

D.工程监理单位

题型:填空题

阅读理解

     Japanese high school students either walk or ride bicycles if the distance is not too great. In other

cases, students must take public buses and trains. After junior high school, students attend schools

based on their high school entrance examination scores. So some students travel a great distance to

attend the school.

     ________

     The school day begins at 8:30. Then students assemble in their homeroom classes for the day's

studies. Each homeroom has an average of 40-45 students. Students stay in their homeroom classrooms

for most of the school day. Only for physical education, laboratory classes, or other subjects requiring

special facilities(设备) do students move to different parts of the school. Between classes and at

lunchtime, classrooms can be noisy, lively places. Some schools may have a cafeteria(自助餐厅), but

most do not. In most schools, students bring a box lunch from home, prepared by the mother in the early

morning hours.

     Japanese students spend 240 days a year at school, 60 days more than American students. Students

in high schools take three years' each of the following subjects mathematics, social studies, Japanese,

science, and English. Other subjects include physical education, music, art, and moral(道德的) studies.

All the students in one grade level study the same subjects. Given the number of required subjects,

electives(选修科目) are few.

     Afterschool Activities

      Club activities take place after school every day. Students can join only one club, and they rarely

change clubs from year to year, so the clubs are relatively stable. Clubs are made up of sports clubs

(baseball, soccer, judo, kendo, etc.) and culture clubs(English, broadcasting, science, etc.). New

students usually are encouraged to select a club shortly after the school year begins in April. Clubs

meet for two hours after school each day and many clubs continue to meet during school vacations.

1. Most Japanese high school students often have their lunch________.

A. in restaurants  

B. in school cafeterias

C. at home    

D. in homeroom classrooms

2. Students in the USA go to school________days a year.

A. 180  

B. 200  

C. 240  

D. 300

3. The underlined word "rarely" in the fourth paragraph means "________".

A. always 

B. never  

C. seldom  

D. often

4. From the passage we know that________.

A. there are less than 40 students in each class in Japanese high schools

B. students must stay in homeroom classrooms for physical education

C. there are few subjects for students to choose except the required ones

D. there will not be any club activities during school vacations

5. The best subtitle for the second and third paragraphs may be "________".

A. At school  

B. In class

C. Subjects  

D. Homerooms

题型:填空题

我国将借鉴国际先进经验,把临床实验室管理纳入()

A.人性化管理

B.标准化管理

C.规范化管理

D.制度化管理

E.法制化管理

题型:填空题

某电商B账户整体跳出率高于60%,请问造成这种情况的可能性有哪些?()

A.关键词匹配模式多为广泛

B.创意与LP内容不符

C.点击URL未加广告监测代码

D.页面打开速度过慢

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