问题 单项选择题

某套利者在上海期货交易所进行铜的蝶式套利交易,4月10日以57 520元/吨的价格买入4手7月份到期的期货。同时以57 540元/吨的价格卖出10手8月份到期的期货,以57 550元/吨的价格买入6手9月份到期的期货。4月15日平仓时,三种期货的价格分别是57 560元/吨、57 580元/吨和57 610元/吨。则套利结果为( )元。

A.盈利600
B.盈利1 200
C.亏损600
D.亏损1 200

答案

参考答案:A

阅读理解

Zach Linsky, 11, watches TV for 3 and a half hours a day and plays video games every other day. Zach, a sixth grader in Washington, D. C., is an American. But unlike many kids, he doesn’t have a TV, VCR, or computer in his bedroom. He only has a boom box (手提录音机).

The survey of 3,155 kids, aged 2 to 18, shows that they spend 5 hours and 29 minutes on average(平均的) a day using some types of media outside of school, including 2 hours and 46 minutes watching TV, 21 minutes on the computer, 20 minutes playing video games, and 8 minutes on the Internet. The good news: The total includes 44 minutes spent reading.

The survey also shows that those aged 2 to 7 spend 3 hours and 9 minutes watching TV every day and shows that 32 percent in that age group have TV sets in their rooms. Among those aged 8 to 18, 21 percent have computers in their rooms, 65 percent have TV sets, and 61 percent say their parents don’t stop them from watching TV. Nearly 1 in 4 say they watch more than 5 hours a day.

“Kids are living much more lonely lives than ever before,” says Kay S. Hytnowitz. “They just disappear into their rooms and spend all of their time with these media.”

小题1:At what age do children in America spend about five and a half hours on the media a day?

A.Aged 2 to 7.

B.Aged 2 to 18.

C.Aged 8 to 18.

D.Aged 2 to 11.小题2:How long do kids aged 2 to 18 spend reading?

A.46 minutes.

B.21 minutes.

C.20 minutes.

D.44 minutes.小题3:How many kids aged 2 to 7 have TV sets in their rooms?

A.32%.

B.21%.

C.61%.

D.40%.小题4:Why do the children spend all of their time with these media? Because _______.

A.they have too much free time

B.they feel very lonely

C.they like these media

D.they want to find out something小题5:What’s the problem of the kids in America according to the passage?

A.There are too many media now.

B.Kids spend too much time on the media.

C.Kids are too fat.

D.Kids would rather be with friends than the TV.

单项选择题