
【名词&注释】
卫星通信(satellite communication)、光纤通信、经济评价(economic evaluation)、核电站(nuclear power station)、通信卫星(communication satellite)、传递信息(transfer information)、核聚变(nuclear fusion)、氧分子(oxygen molecule)、光导纤维
[单选题](09赤峰)关于能源和信息,下列说法中正确的是( )
A. 化石能、水能、风能均是可再生能源
B. 目前的核电站都是利用核聚变(nuclear fusion)释放的能量来发电的
C. 光纤通信是利用激光通过光导纤维来传递信息的
D. 卫星通信是通过通信卫星利用微波或中波传递信息的
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点击获取本科目所有试题
举一反三:
[单选题]9. This T-shirt is very old,________I like it very much.
A. because
B. or
C. but
D. and
[单选题]BToday is Alice's birthday. All her friends are in her home. They're Ann, Tom and Lin Tao. Look! These presents on the table are for her. This new computer is from her father.The beautiful dress is from her mother. The toy car and the toy boat (船) are from Tom and Lin Tao. These flowers are from Ann They're red, green and yellow. Alice is very happy.
A. Whose birthday is it today?
B. Alice's
C. Ann's
D. Tom’s
E. Lin Tao’s
[单选题]BGina is a movie fan. She likes to go to the movies. Her father likes to go, too.They often go to the movies on weekends. Gina's favorite actor is Rowan Atkinson.She likes his movie Mr Bean. She thinks it is very funny. She also bought a CD of the movie. And she often sees the movie on the video. Gina-s father likes action movies very much. His favorite actor is Arnold Schwarzenegger . He thinks his movies are ex-citing and Schwarzenegger is a successful and great actor. Gina and her father don't like thrillers.They think thrillers are scary and boring.
A. Gina likes to see _________.
B. comedies
C. action movies
D. thrillers
E. Beijing Opera
[单选题]在经济评价中,一个项目内部收益率的决策准则为( )。
A. IRR低于基准收益率
B. IRR0
C. IRR大于或等于基准收益率
D. IRR>0
[单选题]关于SO2、CO2、MnO2三种物质,下列说法错误的是
A. 都含有氧元素
B. 都是化合物
C. 都是氧化物
D. 都含有氧分子(oxygen molecule)
[单选题]When is the Chinese Spring Festival usually celebrated?
A. In March or April. B. In May or June.
B. In January or February.
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