下列关于流网性质的叙述中,错误的是()A.各等势线间的差值按大于l的等比例依次递增

题型:单项选择题

问题:

下列关于流网性质的叙述中,错误的是()

A.各等势线间的差值按大于l的等比例依次递增

B.各流槽的流量相等

C.相邻两等势线间的水头损失相等

D.流线与等势线正交

考点:土木建筑工程工程地质与土力学工程地质与土力学题库
题型:单项选择题

在盛有足量Na2O2的密闭容器中充入3molCO2和1molCO,不断用电火花引燃,充分反应后,容器内剩余气体的物质的量为:(  )

A.0

B.0.5mol

C.1mol

D.1.5mol

题型:单项选择题

在下列个人用户接入广域网技术中,传输速率最高的是( )

A.拨号MODEM

B.ISDN(2B+D)

C.ADSL

D.光纤以太网

题型:单项选择题

---          today!

---Yes. Shall we have a picnic in the open air?

A.What fine weather is

B.How fine weather it is

C.What a fine weather it is

D.How fine the weather is

题型:单项选择题

完成句子

阅读下列各小题,根据每句后的汉语提示,用句末括号内的英语单词完成句子.

1. The boy ____________________ reading a novel that he forgot there was a large amount of

    homework remaining unfinished. (lose)

这个男孩如此入迷地看着小说,以至于都忘了还有一大堆作业没写完.

2. If all nations ____________________their energy supply sources to reduce waste a little earlier,

    things would be much better now. (seek)

如果所有的国家早一些通过寻求改变能源供应的来源来减少浪费的话,现在一切都会好很多.

3. It is not who is right but what is right ______________. (importance)

重要的不是谁是对的,而是什么是对的.4. Nothing gave the mother more pleasure than ____________________ to be useful citizens of the country. (bring)

没有什么比看见自己的孩子被培养成对祖国有用的人才更让她高兴的了.

 5. The combined working group will look into the train rearend collision(追尾事故), ____________________ the cause of accident officially and punishing some responsible persons concerned. (account)

联合工作小组将会调查火车追尾事故,来正式说明事故原因,并惩罚相关的负责人员.

6. They were about to get down the hill ________________heavily. (begin)

他们正要下山,这时天突然开始下起了大雨.

7. They urged him to go on with his story, so he had to stop ____________________the delicious

    food on the table. (stare)

他们催促他继续(讲)他的故事,因此他不得不停止盯着桌上美味的食物.

8. The rain was heavy but, ____________________, our fields were not flooded. (contrary)

尽管雨下得很大,不过和我们的担忧相反,我们的地并没有被淹没.

9. Not being able to come up with a solution to his being penniless, he had to earn his living ________________________. (work)

实在是想不出什么方法能够解决他的贫困问题,他不得不靠做服务生谋生.

10. The teacher asked ____________________the present situation, but there was really no quick

      answer to it. (do)

老师问我打算如何处理目前的状况,但是这个问题真的很难用一两句话来回答.

题型:单项选择题

水尺编号中的组号,用于区别不同断面,代表水尺断面名称,用()字母表示,

A、小写英文

B、大写英文

C、小写汉语拼音

D、大写汉语拼音

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