电压的符号为()。A.R B.I C.U D.P

题型:单项选择题

问题:

电压的符号为()。

A.R

B.I

C.U

D.P

考点:综合计量工考试中级综合计量工中级综合计量工题库
题型:单项选择题

现代文明的三大支柱技术是( )。

A.航天

B.能源

C.信息

D.材料

题型:单项选择题

北京奥运会祥云火炬的燃料为丙烷。下列关于丙烷性质的描述中,属于化学性质的是

A.无色气体 

B.易燃  

C.沸点为-42.1℃ 

D.微溶于水,可溶于乙醇

题型:单项选择题

下部块体结构中一般布置哪些设备?其结构尺寸应如何决定?

题型:单项选择题

      My dad loved pennies, especially those with the elegant stalk of wheat curving around each side of the ONE CENT on the back. Those were the pennies he grew up with during the Depression (大萧条).

      As a kid, I would go for walks with Dad, spying coins along the way-a penny here, a dime

(一角硬币) there. Whenever I picked up a penny, he'd ask, "Is it a wheat?" It always thrilled him when

we found one of those special coins produced between 1909 and 1958, the year of my birth.

      One gray Sunday morning in winter, not long after my father's death in 2002, I was walking down Fifth Avenue, feeling bereft. I found myself in front of the church where Dad once worked. I was warmly shown in and led to a seat. Hearing Dad's favorite "A Mighty Fortress Is Our God", I burst into tears. We'd sung

that at his funeral. After the service, I shook the pastor's hand and stepped onto the sidewalk-and there

was a penny. I bent to pick it up, turned it over, and sure enough, it was a wheat. A 1944, a year my

father was serving on a ship in the South Pacific.

      That started it. Suddenly wheat pennies began turning up on the sidewalks of New York everywhere. I got most of the important years: his birth year, my mom's birth year, the year he graduated from college,

the year he met my mom, the year they got married, the year my sister was born. But alas, no 1958 wheat penny-my year, the last year they were made.

      The next Sunday, after the service, I was walking up Fifth Avenue and spotted a penny in the middle of a crossing. Oh, no, it was a busy street;cabs were speeding by-should I risk it? I just had to get it.

A wheat! But the penny was worn, and I couldn't read the date. On arriving home, I took out my glasses

and took it to the light. There was my birthday!

      I found 21 wheat pennies on the streets of Manhattan in the year after my father died, and I don't think that's a coincidence.

1. The writer's father loved pennies with wheat because ________.

A. when he first saw it,he began to love it

B. when he saw the wheat,he thought of his time during the Depression

C. when he was young,he had a lot of pennies with wheat

D. when he was a child,he never got a coin with wheat

2. The underlined word "bereft" (in Para.3) means ________.

A. alone      

B. disappointed      

C. upset      

D. discouraged

3. Which of the following statements about the author is NOT true?                

A. He was born in 1958.            

B. He went to church because of his father.

C. He once worked in a church.     

D. He knew the church well.

4. The underlined sentence (in Para.4) suggests ________.

A. the author's father began to serve on a ship

B. the author picked up many wheat pennies since then

C. the author began to love wheat pennies since then

D. the author started to look for wheat pennies with 1958

5. The best title for the passage would probably be ________.

A. Pennies from Heaven            

B. My father's life story  

C. My father's hobby              

D. Living in New York

题型:单项选择题

如果在命令窗口执行命令:LIST名称,主窗口中显示:
记录行 名称
1 电视机
2 计算机
3 电扇线
4 电脑连线
5 电话线
假定名称字段为字符型,宽度为8,那么下列程序段的输出结果是( )。
GO 2
SCAN NEXT 4 FOR LEFT(名称,2)="电"
IF RIGHT(名称,2)="线"
EXIT
ENDIF
ENDSCAN
名称

A.电视机

B.电扇线

C.电脑连线

D.电话线

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