“信息”“材料”“能源”被称为新科技革命的三大支柱,下列叙述不正确的是 [ ]

题型:选择题

问题:

“信息”“材料”“能源”被称为新科技革命的三大支柱,下列叙述不正确的是 [ ]

A.塑料制品的广泛应用“有百利而无一害”

B.太阳能、氢能将是未来发展的主要能源

C.新型材料将在航空航天领域中得到广泛应用

D.用乙醇汽油作为汽车的燃料,可节省石油资源,减少汽车尾气的污染

考点:燃料的利用和新能源的开发合成有机高分子材料
题型:选择题

中国的四大自然奇观是()。

A.三江并流、小寨天坑、瑶琳仙境、钱塘涌潮

B.长江三峡、瑶琳仙境、路南石林、钱塘涌潮

C.长江三峡、桂林漓江、路南石林、江城树挂

D.桂林漓江、江城树挂、三江并流、小寨天坑

题型:选择题

— Who can _____________ your pen pal?

— Mary can. [ ]

A. is

B. am

C. are

D. be

题型:选择题

此题要求改正所给短句中的错误. 对标有题号的每一行作出判断, 每行只有一个错误, 按下列情况改正:

此行缺一个词: 在缺词处加一个漏字符号 (^) , 在该行右边横线写出该加的词.

此行多一个词: 把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉.

 此行错一个词:在错的词下画一横线,在该行右边横线上写出改正后的词.

Helen is a twenty-years-old girl. She never had a job   小题1:_____

before. Now she wanted get a job. So she went to meet 小题2:_______

Mr Black, the manager of the hotel. Mr Black told     小题3:___

her it was getting very busy in the hotel on the evenings. 小题4:_______

He asked her if she was interesting in a part-time job.    小题5:________

The girl said that she did. Then Mr Black said she had    小题6:_______

to work very faster and that she must be there at six       小题7:______

every afternoon and work from six to ten, Monday to      小题8:_____

Friday. He offered her with 4.5 dollars an hour. Hellen      小题9:_____

pleased with the offer and decided to start work the next day. 小题10:_____

题型:选择题

妊娠囊的双囊可能是:①双胎妊娠;②流产受阻或植入性出血;③枯萎卵;④两层蜕膜之间的无回声区()

A.①

B.①②④

C.①②③

D.①②③④

E.①②④

题型:选择题

肺动脉栓塞典型的影像学表现包括()

A.肺灌注显像表现为多发的肺段性放射性分布减低或缺损区

B.肺灌注显像表现为多发的肺段性放射性分布浓聚区

C.同期肺通气显像正常

D.胸部X线检查正常

E.同期肺通气显像异常

更多题库