题目内容

【题目】最适合用管道运输的货物是

A. 钢材 B. 瓶装液化气 C. 天然气 D. 煤炭

【答案】C

【解析】依据各种交通运输方式的特点,根据不同的运输情况选择合适的运输方式。公路运输机动灵活、可以从门口到门口,价格适中,适合短距离运输;航空运输速度快、但是运量小,价格高,适合急需情况的长途运输;铁路运输速度较快、运量较大,运价适中,适合运量较大的长途运输;水上运输运量大、运价低,但是速度慢、受地域的限制,适合两海港之间较大运量的长途运输;管道运输在地下,一般适合长距离输送石油、天然气、水,故本题选C。

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【题目】阅读下面短文,把A—D四个句子填入文中空缺处,使短文内容完整、正确,然后完成第47小题。

Do you know what a MOOC is?MOOC is short for Massive(大量的)Open Online Course.Thousands of people can take a MOOC at the same time.You can be anywhere in the world to take it. 43

For years,many colleges have had classes online.MOOCs are always used in subjects like computer science and engineering.Can MOOCs be used in subjects like arts or philosophy(哲学)?

Scott Anderson teaches philosophy at a university in Canada. 44 He says,“When students take some lessons,they needn't be present to hear and get them.”He says more and more students in MOOCs can mean less communication between them and the teachers.He also gives two ways to solve this problem—adding more teachers and making online discussion groups.

45 She says online education has more weaknesses for her subjects.She says,“What's lost in online education is face-to-face communication.But the teaching of literature needs that.” 46 However,she believes that hybrid(混合的)courses work best.

A.He thinks MOOCs have both advantages and disadvantages.

B.All you need is a computer and the Internet.

C.Lisa Jadwin teaches literature and writing at a college in New York.

D.She says some students can learn very well from talks and discussion groups.

1_____

2_____

3_____

4_____

5The passage is mainly about .

A. how students take MOOCs

B. what two teachers think of MOOCs

C. which college has MOOCs

D. why more and more teachers like MOOCs

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