将两个“220W60W”的白炽灯串联接在家庭电路中，两灯发光的总功率为﹙﹚（ ）

阅读理解。

      Many young people want to be pop stars. They think it would be a wonderful life. In fact most pop

stars have very hard lives. They spend much of their time on tour, and though this can be fun, it can also

be exhausting(疲倦).

     This is a typical day in the life of pop star on tour.

Novermber 26

     5:00 A.M. Woke up in hotel room. Packed bags. Met manager in hotel lobby. Took taxi to airoirt.

     6:00 Breakfast at airport. Discussed day's timetable with manager. Plane's departure delayed an hour

by fog.

     7:45 Finally boarded plane.

     8:30 Arrived and waited half an hour for luggage. Then gave i nterview to TV crew.

     9:45 Gave first radio interview of the day.

     10:15 Went from radio station to radio station giving interviews.

     12:00 P.M. Interview and lunch with stupid journalist who'd never heard of me.

     1:00 Had photo for newspaper.

     1:15 Went to theatre to check lighting. Met local producer and band-very poor.

     2:00 Rehearsed show. Band a little better.

     5:00 Back to hotel. Showed and tried to test but too worried about band.

     6:30 Back at theatre. Changed into costume for show.

     7:30 On stage at last. Gave performance. Band very bad but audience love me.

     10:00 Party after show. Met fans and more journalists.

     11:00 Fell into bed exhausted. Set alarm for the morning.

1. The main idea of the passage is ______.

A. lots of young people want to be pop stars

B. most pop stars have hard lives

C. pop stars have a wonderful life

D. pop stars have a lot of fun on tour

2. When did the pop star give interviews?

A. From 6:00 a.m. to 1:00 p.m..

B. From 7:45 a.m. to 10:15 p.m..

C. From 9:00 a.m. to 1:00 p.m..

D. From 8:30 a.m. to 10:15 p.m..

3. What was wrong with the performance?

A. The pop singer performed badly.

B. The audience didn't like the pop star.

C. The show didn't srart on time.

D. The band performed badly.

4. Why do pop star have hard lives?

A. Because lots of people want to be pop star.

B. Because they spend a lot of time touring.

C. Because touring isn't exhausting.

D. Because being a pop star is wouderful.

5. How long was the popular star's day?

A. 11 hours

B. 16 hours

C. 18 hours

D. 12 hours

标本置冰箱24小时后，分离血清测结果

A．血清K+↑
B．血清Cl-↑
C．血清Na+↑
D．血清C1-↓
E．血清K+↓

“在20世纪30年代中期，罗斯福提名了5位自己信任的最高法院法官，并被批准。人们称新法院为‘罗斯福法院’。它在解释宪法时既深刻又迅速，它扫除一切关于新的社会与经济立法是否合乎宪法的怀疑。”这个“罗斯福法院”[ ]

A、是罗斯福总统违反宪法的产物

B、是罗斯福总统操纵司法权的结果

C、有利于罗斯福新政的实施

D、虽违宪，但有利于实施罗斯福新政

用水库水量平衡表对照检查流量资料的合理性时，水量平衡表的编制内容不包括（）

A.进库站径流量、区间径流量、库面降水量等来水量

B.水库泄放径流量、库面蒸发量等去水量

C.水库死库容

D.水库容积变量

一数控车床，其他切削正常，切削螺纹时螺距严重超差的主要原因是（）。

A.进给倍率选择不当

B.主轴编码器故障

C.主轴转速波动

D.螺纹车刀装夹不正