一辆轿车的加速度方向与速度方向一致,当加速度逐渐减小时( ) A.轿车的速度也在

题型:选择题

问题:

一辆轿车的加速度方向与速度方向一致,当加速度逐渐减小时(  )

A.轿车的速度也在减小

B.轿车的速度一直在增大,直到加速度减小到零为止

C.轿车做变速运动的位移越来越小

D.轿车做变速运动的位移一直在增大,直到加速度减小到零为止

考点:加速度
题型:选择题

On a Friday night,a poor young violinist was playing his violin at the entrance of the subway station. The music was so great that people slowed down to listen and put some money into his hat.

The next day,the violinist came to the entrance again. He put down his hat as usual. Beside the hat was a piece of paper with some words on it. It said,“A George Sang has put an important thing into my hat by mistake. Welcome to claim(认领)it.”Soon the people were all attracted by the words and wondered what it could be. After a while a man rushed through the crowd,took the violinist’s shoulders and said,“I knew you would certainly come here.”The violinist asked,“Did you lose something?”“Lottery( * * ).”The violinist took out a lottery ticket with Sang’s name on it. Sang took it and danced happily.

Sang was an office worker. He bought the lottery and won a prize of$500,000.But when he gave$50 to the violinist for his wonderful music,the lottery ticket was thrown in, too. The violinist was a college student. That morning,he was going to fly to Vienna for high education. However,when he found the ticket,he cancelled the flight and returned to the entrance.

Later someone asked the violinist why he didn’t take the lottery ticket to pay the tuition fee(学费).He said“Although I don’t have much money,I live happily. If I lose honesty(诚实),I won’t be happy forever.”

小题1:The young man played the violin for ________ at the entrance of the subway station.

A.pleasure

B.money

C.Love

D.friends小题2:George Sang put__________ into the violinist’s hat on a Friday night by mistake.

A.money

B.1ottery

C.money and lottery

D.nothing小题3:George Sang was very__________ to see the young violinist the next day.

A.worried

B.sorry

C.exciting

D.happy小题4:The underlined word“cancelled”means __________ .

A.取消

B.延误

C.预定

D.结束小题5:What’s the best title(标题)for this passage?

A.The meaning of honesty

B.An office worker and a lottery ticket

C.The importance of being honest

D.A violinist and an office worker

题型:选择题

经典的精神分析理论认为人格的发展经历了一系列的心理-性欲发展阶段

俄狄浦斯情结发生在()

A.潜伏期

B.肛门期

C.口唇期

D.前生殖器期

E.生殖器期

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侦查人员怀疑已批捕的甲患有精神病,拟对其进行鉴定。关于对甲进行鉴定一事,下列哪些程序是正确的?()

A.应当由省级医院进行

B.精神病鉴定结论应加盖医院公章

C.精神病鉴定的时间计入办案期限

D.作为证据的精神病鉴定结论,告知犯罪嫌疑人和被害人

题型:选择题



As always, I am pleased to be here at the National Press Club for my (1) Speech. This is the seventh time I have had the (2) to give this speech, and over the years I have talked about a wide range of issues: (3) , reading, setting high expectations, improving the teaching profession, and (4) the American high school -- to name just a few.
I have just returned from a five-day, (5) tour of schools in rural America. We started in Monroe, Louisiana, and finished (6) later in Paducah, Kentucky. What I noticed most about the trip was the weather. Every time I (7) my Success Express School Bus, the local people who came to greet me (8) that the record for (9) had just been broken in their community. In each place, the temperature was always between (10) degrees.
Now, I have very good people on my staff. But the next time we plan a (11) , I’m going to have a (12) on my staff. I took this bus trip through rural America to make an important point that the (13) of children in our nation’s small towns cannot be ignored. Twenty-five percent of all our school children live in (14) all over America.
When it comes to our children, let’s always remember that children everywhere have (15) and (16) . Yet, schools in small towns too often have to (17) because of limited resources and a (18) . On my trip I put a p focus on the issues that matter in rural America, with a particular emphasis on (19) schools, reducing class size, and overcoming the (20) .

题型:选择题

将10g硝酸钾放入90g水中,完全溶解后所的溶液中溶质的质量分数为(  )

A.10%

B.90%

C.11.1%

D.80%

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