柴油机供给系统功用是按着发动机各种不同工况的要求,定时、()、定压地把柴油喷入气缸,

题型:单项选择题

问题:

柴油机供给系统功用是按着发动机各种不同工况的要求,定时、()、定压地把柴油喷入气缸,并向气缸提供清洁空气与燃油混合,形成可燃混合气。

A、定量

B、定向

C、定点

D、定期

考点:农机修理工考试农机修理高级工农机修理高级工题库
题型:单项选择题

My father was a foreman of a sugar-cane plantation(甘蔗种植园) in Rio Piedras, Puerto Rico. My first job was to drive the oxen that ploughed(耕) the cane fields. I would walk behind an ox(牛), guiding him with a broomstick. For $ 1 a day, I worked eight hours straight, with no food breaks.

It was very tedious work, but it prepared me for life and taught me many lasting lessons. Because the plantation owners were always watching us, I had to be on time every day and work as hard as I could. I’ve never been late for any job since. I also learned about being respectful and faithful to the people you work for. More important, I earned my pay; it never entered my mind to say I was sick just because I didn’t want to work.

I was only six years old, but I was doing a man’s job. Our family needed every dollar we could make because my father never earned more than $ 18 a week. Our home was a three-room wood shack with a dirty floor and no toilet. Nothing made me prouder than bringing home money to help my mother, father, two brothers and three sisters. This gave me self-esteem(自尊心), one of the most important things a person can have.

When I was seven, I got work at a golf course(高尔夫球场) near our house. My job was to stand down the fairway and spot the balls as they landed, so the golfers could find them. Losing a ball meant you were fired, so I never missed one. Some nights I would lie in bed and dreamt of making thousands of dollars by playing golf and being able to buy a bicycle.

The more I dreamed, the more I thought. Why not? I made my first golf club out of guava limb(番石榴树枝) and a piece of pipe. Then I hammered an empty tin can into the shape of a ball. And finally I dug two small holes in the ground and hit the ball back and forth. I practiced with the same devotion and intensity. I learned working in the field — except now I was driving golf balls with club, not oxen with a broomstick. 

小题1:The word “tedious” in Paragraph 2 most probably means _______.

A.easy

B.boring

C.interesting

D.unusual小题2:The writer learned that_______ from his first job.

A.he should work for those who he liked most

B.he should work longer than what he was expected

C.he should never fail to say hello to his owner

D.he should be respectful and faithful to the people he worked for小题3:_______ gave the writer self-esteem.

A.Having a family of eight people

B.Owning his own golf course

C.Bringing money back home to help the family

D.Helping his father with the work on the plantation

题型:单项选择题

漫画(左边为伊朗总统内贾德,右边为委内瑞拉总统查韦斯)说明了

[ ]

A.国家间的共同利益是双方合作的基础

B.国家之间存在着根本利益的一致性

C.国家力量是决定双方共同反美的因素

D.发展志同道同、共建联盟的关系成为当今时代的主题

题型:单项选择题

关于管型,哪项不正确()

A.粗大上皮细胞管型——急性肾衰

B.蜡样管型——慢性肾衰

C.红细胞管型——肾盂肾炎

D.脂肪管型——肾病综合征

E.白细胞管型——肾盂肾炎

题型:单项选择题

资产阶级维新派和清末立宪派的相同点有()①都主张在维持清王朝不变的前提下,通过政治改良达到参政议政的政治目的②都不敢或不愿发动群众,甚至仇视人民革命③都主张学习西方思想文化④在历史上的地位一样

A.①②③④

B.①②③

C.②③

D.①③④

题型:单项选择题

“推泡抽眉”属于()福建泡法(20道程序)之一。

A.绿茶

B.红茶

C.乌龙茶

D.白茶

更多题库