凹坑的形状多为()A.V形 B.U形 C.无规则

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问题:

凹坑的形状多为()

A.V形

B.U形

C.无规则

考点:民用航空器维修执照考试飞机电气系统(AV基础)飞机电气系统(AV基础)题库
题型:单项选择题

Surprises often come in boxes. Birthday presents wrapped in colorful paper, brown paper packages mailed from a friend. No matter what kind of box it is, people like to open it up and see what's inside. In America, and in many other countries, one special kind of box contains the future. It's called a ballot box. What people put into the box on election day can change the course of history.

Elections are the lifeblood of a democracy. The word democracy literally means "the people rule," an important concept in American history. In the mid-1700s, England began passing laws that made the American colonies angry. The colonists had to pay more and more taxes and enjoyed less and less freedom. They felt the government of England didn't represent their interests. On July 4, 1776, the colonies declared their independence from England. They wanted to establish a democracy where people could have a voice in government.

An effective democracy holds regular elections. In America, elections are held every two years for members of Congress. In these elections, all seats in the House of Representatives and one-third of the Senate seats are up for grabs. In addition, every four years, voters go to the polls to elect the nation's president and vice-president. Voters also regularly cast their ballots for state and city government leaders and local school board members. Sometimes they also have to vote on a proposed law.

In the American electoral system, people don't really vote for presidential candidates. Instead, voters cast their ballots for "electors" who support each candidate. Each state has as many electors as the total number of its representatives in Congress. This equals two senators per state plus the number of its representatives in the House (which is based on the state's population). The candidate who has the most votes in a state wins all of the state's electors. To win the presidential election, a candidate must gain at least 270 of the 538 total electoral votes.

Over the years, the U.S. has made a number of election reforms. Some early reforms outlawed cheating, giving bribes and threatening voters. They also limited the amount of money candidates could receive from donors and spend on their campaigns. In 1870, black people gained the right to vote, and in 1920, that right was extended to women. In recent decades, laws against unfair rules for voting have been passed. No longer do people have to pay a special tax or pass a test in order to vote. In 1971, the voting age was lowered to 18. Other reforms made voting easier for the blind, the disabled and people who couldn't read. In some areas, ballots had to be printed in languages besides English.

In November, Americans will again elect those who will represent them in government. Although some citizens aren't even registered to vote--and some registered voters don't bother to go to the polls--most Americans exercise their right to vote. They realize that their future is wrapped up in a special package--the ballot box. It's a package that must definitely be "handled with care."

小题1:According to the context, what does a “ballot box” mean in Chinese?

A. * * 箱

B.投票箱

C.礼品箱

D.保险箱小题2:Democracy means that ____.

A.People couldn’t have a voice in a government.

B.In America, elections are held every four years for members of Congress.

C.Democracy is the lifeblood of elections.

D.Basically “ the people rule”, and it’s very important in American history.小题3:How will the votes distributed if Romney got 20 votes while Obama received 17 votes in California in the election?

A.Romney will win 20 votes in California.

B.Obama will win 20 votes in California.

C.Romney will win 37 votes in California.

D.Obama will win 37 votes in California.小题4: Which one is RIGHT about election reforms?

A.People have to pay a special tax to vote.

B.There are bribes and threatening in elections now.

C.People above eighteen years old can vote now.

D.The disabled or the blind have tough access to voting.小题5: What’s the main idea of this passage?

A.Birthday boxes in the U.S.

B.Election systems in the U.S.

C.Election reforms in the U.S.

D.Democracy in the U.S.

题型:单项选择题

患儿女,11岁。突发下腹痛5小时来院就诊,伴排尿困难。查体:生命体征平稳,腹软,未触及包块,压痛、反跳痛不明显,麦氏征阴性。妇科检查不配合。妇科B超提示右附件见囊性包块,直径约8cm,伴脂肪分层,考虑"右附件畸胎瘤伴扭转"收入院。

复查B超提示可见子宫,未见 * * ,下一步处理措施为()

A.行人工 * * 成形术

B.即刻行腹腔镜检查

C.B超引导下穿刺置管引流

D.处女膜处穿刺引流

E.密切观察,暂不处理

题型:单项选择题

音阶

题型:单项选择题

人们购买证券的主要目的是为了()

A.获得股息    

B.获得利息 

C.买卖证券的差价收入  

D.保存本金

题型:单项选择题

舒张早期奔马律与生理性第三心音的区别不包括

A.舒张早期奔马律出现在有严重器质性心脏病的患者.生理性第三心音出现在正常人

B.舒张早期奔马律不受体位影响,生理性第三心音于坐位或立位消失

C.舒张早期奔马律出现在心率较慢时,生理性第三心音出现在心率较快时

D.舒张早期奔马律的额外心音与S1和S2的间距相仿

E.生理性第三心音与S2的间距近于S1和S2的间距

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