输油泵的高效工作区指的是在额定工作点()范围内。 A.±3% B.±5% C.±7%

题型:单项选择题

问题:

输油泵的高效工作区指的是在额定工作点()范围内。

A.±3%

B.±5%

C.±7%

D.±8%

考点:输油工考试输油工中级输油工中级题库
题型:单项选择题

阅读理解。

     The Chinese New Year is called the Spring Festival which is the biggest festival in China.

     It usually comes in January or February. Where there are Chinese, there is the Spring Festival. Each

Chinese year has a name. We may call it the year tiger, the year of pig or the year of snake. And the year

of 2003 is called the year of sheep. The year after it is the monkey year.

     People always spend a month before the festival in preparing (准备) for it. People are busy shopping

and cleaning their houses. On the Eve(除夕夜) there is a big family dinner. All the family stay up late to

welcome the New Year, watching the CCTV programs or playing majiang. On the first day of the

Chinese New Year, people put on their new clothes and go to visit their relatives(亲戚) and friends,

saying "Happy New Year", "Good luck" and some other greetings to each other. It often lasts to the

Lantern Festival, which is also an important Chinese festival and people usually have sweet dumplings

(yuanxiao). People always have a very good time, especially children. Children can usually get some

money for the new year from their parents and the elder relatives.

1. We call the Chinese New Year_____.

A. the biggest festival                  

B. the Lantern Festival

C. the Spring Festival                  

D. the year of snake

2. The year of 2004 is the year of _____.

A. tiger      

B. pig    

C. sheep      

D. monkey

3. The sentence "Where there are Chinese, there is the Spring Festival"means that _____.

A. the Spring Festival is celebrated only by Chinese people in China

B. the Chinese people celebrate the Spring Festival, even when they are in foreign countries.

C. People celebrate the Spring Festival all over the world

D. People who can speak Chinese celebrate the Spring Festival in the world

4. What do people say when they meet on the Chinese New Year's Day?

A. They say "Merry Christmas" and "Happy New Year".

B. They say "Good luck" and Good night" to each other.

C. They say "Happy New Year" and "Good luck" only to their friends and relatives.

D. They say many greetings, such as "Good luck" to each other.

题型:单项选择题

北沙参、麦冬的共同功效是()

A.养阴润肺

B.清心除烦

C.清胃热生津

D.润肠通便

E.益气化痰

题型:单项选择题

关于我国季风叙述正确的是(  )

A.东南季风来自太平洋

B.西南季风来自大西洋

C.我国西北地区难以受到夏季风的影响

D.夏季风的性质是寒冷干燥

题型:单项选择题

关于阿米巴肝脓肿,下列错误的是()

A.早期发热,以间歇热及弛张热居多

B.易发生黄疸,转氨酶多明显升高

C.局部症状明显,肝区疼痛、叩痛,局部水肿

D.临床多为单个脓肿,80%位于右叶

E.脓液呈棕褐色,镜检白细胞不多,可发现阿米巴滋养体

题型:单项选择题

将工具箱中的前景色填充到选择区域中的快捷键是()。

A.Shift+Ctrl键

B.Shift+Alt键

C.Alt+Delete键

D.Ctrl+Delete键

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