石油工程上常用密度的单位是()。A、kg/m3B、kg/lC、g/cm3D、ppg

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问题:

石油工程上常用密度的单位是()。

A、kg/m3

B、kg/l

C、g/cm3

D、ppg

考点:一级结构工程师基础知识地质录井技能考试地质录井技能考试题库
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阅读小天地:读一读,选一选。

      It's Tuesday afternoon. Jenny is going to the train station to buy tickets. She and her mother are going on

a trip to Xi'an on Thursday.

      " How much for a ticket from Beijing to Xi'an? " Jenny asks. " 120 yuan," the clerk answers.

      Now Jenny has two tickets. The train leaves at 2: 15 in the afternoon. It arrives in Xi'an at 4: 00 in the

morning. Jenny is excited (激动的). She runs home.

1. Jenny buys the tickets on ____________. 

A. Monday

B. Tuesday

C. Thursday

2. How much for the two tickets?

A. 120 yuan

B. 200 yuan

C. 240 yuan

3. Jenny and her mother want to go to ____________. 

A. Xi'an

B. Beijing

C. Nanjing

4. When does the train leave?

A. At 2: 15 in the morning.

B. At 4: 00 in the morning.

C. At 2: 15 in the afternoon.

5. How does Jenny feel now?

A. She is sad.

B. She is excited.

C. We don't know.

题型:单项选择题

—Does his mother encourage him _____the piano?

—Of course she does.[ ]

A. to play      

B. playing      

C. play        

C. plays

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白种人在古代主要分布在欧洲,但是到了近代,在北美洲、大洋洲,白种人成为当地的主要居民,造成这种现象最主要原因是( )

A.欧洲的殖民扩张

B.土著居民的减少

C.种族之间通婚

D.大量战争移民

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卢梭的自传体小说(),实为一部宣扬个性解放、人格独立,维护“ * * ”尊严的宣言书。

题型:单项选择题

除了ISDN和Cable MODEM外,ADSL也是一种宽带接入方式。它采用不对称的传输模式,其数据下载速度比数据上传速度要 【17】 得多。

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