轻型单吊杆的轴向压力主要取决于() A.吊货索的拉力 B.滑轮的摩擦 C.吊杆自重

题型:单项选择题

问题:

轻型单吊杆的轴向压力主要取决于()

A.吊货索的拉力

B.滑轮的摩擦

C.吊杆自重

D.吊杆的水平仰角

考点:船舶结构与货运船舶结构与设备综合练习船舶结构与设备综合练习题库
题型:单项选择题

阅读理解。

     Hundreds of years ago, news was carried from place to place by people on foot or by horse. It took

days, weeks and sometimes months for people to receive news. Now it is possible to send words and

pictures around the world in seconds. Billions of people learn about news stories of their own country

and all over the world every day, either by watching TV or reading newspapers.

     Newspapers have been an important part of everyday life since (自从) the 18th century (世纪).

Many countries have hundreds of different newspapers. How do newspaper editors decide which news

stories to print? Why do they print some stories and not others? What makes a good newspaper story?   

     Firstly, it is important to report new stories. TV stations can report news much faster than newspapers. Yet, newspapers give more about the same story. They may also look at the story in another way, or

they may print completely (完全地) different stories to those on TV.

     Secondly, a news story has to be interesting and unusual. People don't want to read stories about

everyday life As a result (结果), many stories are about some kind of danger and seem(似乎) to be

"bad" news. For example, newspapers never print stories about planes landing safely, instead they print

stories about plane accidents (事故).

     Another factor (因素) is also very important in many news stories. Many people are interested in news

in foreign countries, but more prefer(更喜欢) to read stories about people, places and events (事件) in

their own country. So the stories on the front page in Chinese newspapers are usually very different from

the ones in British, French and American newspapers.

1. According (根据) the passage, how do people learn about news stories in the world now?

A. They carry news stories and tell others from place to place oh foot or by horse.

B. They tell each other what they have seen with their eyes.

C. They watch TV or read newspapers.

D. They listen to the radio every day.

2.  The difference (区别) between newspaper stories and TV news reports is that _____.

A. people can learn more about the same news story from a newspaper

B. people can read the news story more quickly in a newspaper

C. people can read news stories in other countries

D. people can read news stories about their own country

3. To make a good newspaper story, how many factors does the passage talk about?

A. Two.        

B. Three.        

C. Five.        

D. Six.

4. According to the passage, which of the following can you most possibly watch on TV?

A. You often play football with your friends after school.

B. Your teacher has got a cold.

C. A tiger in the city zoo has run out and hasn't been caught.

D. The bike in the front of your house is lost.

5. Which of the following is Not True of this passage?

A. News stories on the front page of every country are always the same.

B. People like to read interesting and unusual news.

C. Not only TV but also newspapers can help people to learn what is happening around the world.

D. Newspapers have been an important part of everyday life for more than three hundred years.

题型:单项选择题

WHO精子活力分级,a级是指()

A.精子呈不动状态

B.精子呈缓慢或非前向运动

C.精子呈中速直线运动

D.精子呈高速直线运动

E.精子呈高速旋转运动

题型:单项选择题

流体的密度与压力和温度无关。

题型:单项选择题

银行对工程项目管理的主要目的不具有( )。

A.安全性
B.稳定性
C.流动性
D.效益性

题型:单项选择题

一农民左大腿被柴刀砍伤,8小时后送到医院急诊。检查:左大腿外侧有5cm长伤口,边缘尚整齐,伤口内沾有较多泥土。处理宜

A.冲洗、消毒后缝合

B.清创后一期缝合

C.清创后延期缝合

D.清创后不予缝合

E.伤口换药

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