异步电动机的电气制动方法有反接制动、回馈制动和（）制动。

任务型阅读。

    Who is your hero? Why do you like the person? Cool looks? A lot of talent?

    Most of the students in Shanghai say their heroes are hard-working and brave.

    This summer, Shanghai's Xinwen Evening News asked around 1,000 middle school students about their

heroes.

    The newspaper put people in five different groups:leaders, young heroes, writers, artists and business

people.Students were asked to pick one from each group.

     NBA star Yao Ming was the No. 1 Chinese hero with 48% of all the results.

     Zhang Yujiao, 15, speaks highly of Yao, "It was hard for him to go all the way to the NBA." Zhang is

from Shanghai's Beijiao High School. "He's a big star. He is also kind and loves others. He helps disabled

children."

     Zhou Jie, 14, says he likes Zhou Enlai, "He's great. He's kind. He regarded people as his own children.

And he never thought he was different from others."

     Shanghai students also like the US businessman Bill Gates, more than half picked him as their hero.

A student says, "Bill was not born rich.He worked hard. And he doesn't like to tell everyone how rich he is.

He also has courage. He left school to start his own business!"

根据短文内容回答下列问题。

1.What are the heroes like in most of Shanghai students' eyes?

2.将文中画线的句子译成汉语。

3.The Chinese meaning of the phrase "speak highly of" in the passage is "________".

    A. 大声说 B. 站在高处说 C. 高度赞扬 D. 说的兴高采烈

4.How many heroes are mentioned in this passage? 

5.Who is your hero? And why? 

下列去括号中，正确的是（     ）

A． a－（b－c）=a－b－c

B． c+2(a－b)=c+2a－b

C． a－（b－c）=a+b－c

D． a－（b－c）=a－b+c

深化涉外经济体制改革，完善促进( )跨境流动和优化配置的体制和政策。

A．生产要素
B．输出劳务
C．境外投资
D．私营企业

规定是()。

A．下行公文的一种形式

B．与通报一致的公文文体，是通报的另外一种表现形式

C．国家机关、企事业单位要求下级办理，需要周知、共同执行的事项的公文文体

D．国家机关，企事业单位，人民团体等针对某项工作或专门问题提出要求和规范所用的　　公文文体

在移动通讯系统中.用户用来获得电信服务的用户设备是（）.

A.移动交换中心（msC.

B.移动台（ms）

C.基站收.发信机（bts）

D.基站控制器（bsC.