华白数是一个表征燃气燃烧特性的数值,其单位为()。 A.无单位; B.MJ/Nm3;

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问题:

华白数是一个表征燃气燃烧特性的数值,其单位为()。

A.无单位;

B.MJ/Nm3;

C.MJ/m3

考点:特种设备相关管理压力容器安全管理压力容器安全管理题库
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不分布于膝关节的神经是()

A.闭孔神经

B.股后皮神经

C.股神经

D.腓总神经

E.胫神经

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You can be proud of yourselves, even if you can only make one or two of these green changes. The goal here is to limit carbon dioxide and other greenhouse gases, which are closely connected to the big problem of global-warming (全球变暖).

WAY 1: Bring your own cup to Starbucks. You’ll get a 10-cent discount, and it’s one less paper cup to end up in a dustbin. The store won’t create more waste when they throw away a cup.

WAY 2: Turn off your computer. When in standby mode, your PC is still using energy. Turning off a monitor (显示器) for 40 hours a week may only save $ 5 a month, but it reduces CO2 by 750 pounds.

WAY 3: Reuse plastic bags. Instead of throwing away 100 billion plastic bags a year, try and get a second, third, or tenth use out of them. Better yet, next time you shop, try a reusable bag. The amount of oil it would take to make just 14 plastic bags would run your car for one mile.

WAY 4: Use recycled paper in the bathroom. Most of the toilet paper we use is made from trees found in forests. If every family replaced(替换)one roll of toilet paper with a recycled one, 424,000 trees would still be standing.

WAY 5: Plant a tree. Adding green to your garden is beautiful and earth-pleasing. Just one tree will help make cleaner air and save the environment from 5, 000 pounds of hot carbon dioxide each year.

小题1:How many ways are mentioned(提及) in the passage?

A.Two.

B.Three.

C.Four.

D.Five.小题2:What will happen if our PC is turned off when it isn’t in use?

A.It will help to save a large amount of money.

B.It will help to reduce a great deal of CO₂.

C.It will save the amount of oil that runs your car for a mile.

D.It will be like planting 1.7 million acres of new trees.小题3:Which ways suggest recycling or reusing of things?

A.Ways 3 & 4.

B.Ways 2 & 3.  

C.Ways 3 & 5.

D.Ways 2 & 4.小题4:How do these ways do good to our environment?

A.They all help reduce the use of energy like electricity. 

B.They all cut down the number of the use of paper.

C.They all produce less greenhouse gases as a result.

D.They all help protect our trees and forests.小题5:What is the best title for the passage?

A.Ways toSave Money

B.Waysto Be Earth-Friendly

C.Ways to End Global-Warming

D.Waysto Limit Carbon Dioxide

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如果代数式-2a+3b+8的值为18,那么代数式9b-6a+2的值等于______.

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男性,60岁,主诉全身无力、疼痛,体重下降和多尿。体格检查有轻度面色苍白。尿白细胞4.8个/HP,尿糖(-),尿蛋白(+),尿培养(-),尿蛋白排出量2.2g/24h。为明确病因,首选的检查是()

 

A.尿蛋白电泳及尿本周蛋白分析

B.胸部X线片

C.浓缩稀释试验

D.OGTT

E.肾活检

题型:单项选择题

肾性水肿的特点是什么?

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