在风险型决策中,选择方案的标准主要有()。 A.以期望值为标准 B.以自然状态为标准

题型:多项选择题

问题:

在风险型决策中,选择方案的标准主要有()。

A.以期望值为标准

B.以自然状态为标准

C.以合理性为标准

D.以最大可能性为标准

E.以可能结果为标准

考点:统计学统计学原理统计学原理题库
题型:多项选择题

阅读理解。

     I felt very sad because I was not able to get the ticket to the film Hero last Friday. I learned from the

newspaper that tickets could be bought at the cinema box office in Richland Hills any day between 10:00 a.m.

and 4:00 p. m. Since I work from 9:00 a. m. to 5:30 p. m., the only time I could go to the cinema was during

my 45 minutes' lunchtime. It is a pity that the cinema is on the other side of the town and the bus service

between my company and Richland Hills is not very good. But if you are lucky, you can make the round trip

in 45 minutes.

     Last Monday, I stood at the bus stop for 15 minutes waiting for a bus. By the time I saw one come round

the corner, there was not enough time left to make the trip, so I had to go back. The same thing happened on

Tuesday, and again on Wednesday. On Thursday my luck changed. I got on a bus right away and arrived at

the cinema in twenty minutes. But when I got there, I found a long line of people at the box office. I heard

one man said he had been waiting in line for over an hour. I found I would not have enough time to wait in line.

I caught the next bus and went back across the town.

     By Friday I understood my only hope was to make the trip by car. It was expensive, but I felt it would be

worth it to see the film. The trip by car only took 10 minutes, but it felt like an hour to me. When I reached

the cinema, I was delighted to see that nobody was waiting in line. But I quickly found out that it was because

they had already sold out all the tickets.

1. It seems that the writer of the story works ______.

A. in a small town

B. in Richland Hills

C. on a farm near the town

D. at a bus service Center

2. He tried to go to the cinema to buy a ticket but really got there ______.

A. five times

B. four times

C. three times

D. twice

3. The underlined word "delighted" means ______.

A. sure

B. sorry

C. surprised

D. pleased

4. Which of the following is true according to the story?

A. The writer was too busy to have time for a rest during the day.

B. The buses running between his office and Richland Hills were always on time on Thursday.

C. He could buy the tickets neither before nor after work hours.

D. It always took him about twenty minutes to get to the cinema by bus.

5. What's the title of the story?

A. How to Get a Ticket

B. Tickets Sold out

C. A Wonderful Film

D. The Way to the Cinema

题型:多项选择题

下列海区中有寒流分布的是[ ]

A.中高纬海区的大洋东岸

B.中低纬海区的大陆东岸

C.中低纬海区的大洋东岸

D.40°—60°N的西风漂流

题型:多项选择题

情感要比情绪()

A.表现强烈

B.有明显的外部表现

C.有明显的生理变化

D.有明显的面部表情

E.稳定而深刻

题型:多项选择题

烷基苯筐式过滤器进出口管径为()。

A.DN40

B.DN20

C.DN50

D.DN80

题型:多项选择题

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