硅酸盐水泥经试验，有7d的抗压、抗折结果，就可以判定该水泥标号。

On October 31st, 2009, Chinese famous scientist Qian Xuesen, died in Beijing when he was 98 years old. He is famous as “the country’s father of space technology and king of rocketry”.

Qian was born in 1911 in Hangzhou. He left for the United States after winning a schol­arship to graduate school in 1936. He studied at the Massachusetts Institute{学院) of Technology and later at the California Institute of Technology.

Qian began his career in the US and was regarded as one of the brightest minds in the new field of aeronautics{航空学) before returning to China in 1955.

After he returned, Qian set up the first missile (导弹) and rocket research institute of China. The institute later helped start Chinese space program. He led the development of China’s first nuclear-armed ballistic missile and worked on its first satellite.

He retired in the year before Chinese manned space program was launched in 1992. But his research formed the basis for the Long March CZ -2F rocket that carried astronaut Yang Liwei into orbit in 2003.

In August, 2009, Chinese Premier Wen Jiabao visited Qian and praised him for devoting his life to Chinese defense technologies. Qian told him, “I’m trying to live to be 100 years old”

小题1: Qian was regarded as __________ before returning to China.

A．A father of space technology

B．king of rocketry

C．one of the brightest minds in the new field of aeronautics

D．one of the best-known scientists小题2:When did Qian Xuesen retire?

A．In 1970

B．In 1991

C．In 1992

D．In 2009小题3: What does the under­lined word mean in Chinese?

A．发奖品

B．批评

C．赞扬

D．鼓励小题4: List the following things in correct orders. Which is the correct?

① left for the United States     ② won a scholarship to graduate school

③ returned to China from the United States

④ set up the first missile and rocket research institute of China

⑤ studied at the Massachusetts Institute of Technology

A．②①③④⑤

B．②①⑤③④.

C．⑤③④②①

D．⑤②①③④小题5: Which of the following is TRUE according to the passage?

A．Qian was born in 1936 in Hangzhou.

B．Qian began his career in China.

C．The Lρng March CZ-2Frocket carried YangLiwei into orbit in 2009.

D．Wen Jiabao visited QianXuesen in August 2009.

不可用是指设备不论其由于什么原因处于不能运行或备用的状态如（）。

A、锅炉爆管停机

B、季节性缺水停机

C、缺煤降负荷

D、锅炉灭火

颅内肿瘤非定位症状的是（）。

A.头痛、视 * * 水肿

B.癫痫、幻嗅

C.肢体运动和感觉障碍

D.视力、视野障碍

E.眼睑下垂、眼球运动障碍

对怀疑直肠癌的病人，首先应作的检查是（）

A.乙状结肠镜检查

B.直肠指检

C.X线钡剂灌肠

D.大便常规检查

E.纤维结肠镜检查

如果局域网交换机的一个端口只能连接一个结点，并且该结点可以占用该端口的全部带宽，那么通常将这个端口称为专用端口。( )