题目内容
（请给出正确答案）
A、one-way valve
B、desorption valve
C、dry vacuum pump
D、corresponding cooling equipment
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更多“The desorption part of the adsorption method includes （), etc.”相关的问题
The Internet has been perhaps the greatest innovation in information technology. It has become an important tool with many advantages.
First, the Internet is a treasure house of information and knowledge on any topic. It is common practice now to search the web for resources and information for homework, office presentations, work projects and studies, etc.
Second, there are more and more massive open online courses (MOOCs). These MOOCs make it possible for people to carry out their learning any place around the world, and any time around the clock. As long as the learners have access to a digital device which is linked up to the Internet, they can enjoy browsing the pages or watching video lectures. In doing so, they have opportunities to learn from professors they otherwise would not be able to access.
Third, entertainment is one of the leading reasons people like the Web. Listening to music, playing games, watching movies, following the latest news about famous sports stars, movie stars and singers and looking into lifestyle. websites have become day-to-day activities of many Internet users.
One cannot imagine a social life without QQ or WeChat. These social apps have become our means for staying connected with friends, colleagues and family members, and staying in touch with the world.
Last but not least, we can do shop and do other businesses online. We can order goods, books, tickets and pay bills without having to leave our homes or offices.
操作提示：正确选T，错误选F。
1. You can use the Internet to do a lot of things.{T; F}
2. Now, only a few people know how to search the web for resources and information.{T; F}
3. With the Internet, one can learn online anytime and anywhere.{T; F}
4. QQ and WeChat are mentioned in the text as online shopping apps.{T; F}
5. You can order online, but you must go to a bank to pay your bills.{T; F}
| ---- Is it high time that we _____ on the school building？ ---- Yes, it _____.
|
A、circulating oil pump
B、absorber
C、packing
D、liquid flowmeter
A、Transform the oil generator crane tube to provide gas source for oil and gas recovery device
B、Provide power supply for oil and gas recovery control cabinet and make wiring preparation
C、Do a good job of wire embedding of instrument wires from the control room to the site
D、Lay the foundation for the device, and ensure that the device can be directly positioned and installed on site
E、Connect oil inlet and outlet pipelines with oil tanks
F、Complete the installation of electrostatic grounding bar
A、P/V valve
B、vent valve
C、mechanical breathing valve
D、vent valve
A、The oil and gas emission concentration shall not be greater than 25g/m3
B、Oil and gas treatment efficiency shall not be less than 95%
C、Oil and gas volume fraction at any leak point shall not be greater than 0.05%
D、Oil and gas treatment efficiency shall not be less than 90%
A、Gas-liquid ratio: 1~1.2
B、Liquid resistance: nitrogen flow 18, 28, 38L/min resistance less than 40, 90, 155Pa limit
C、Airtight detection: pressurized to 500Pa, and residual pressure value after 5min
D、Oil and gas emission concentration: no more than 25g/m3
A、Petrol stations with an annual sales volume of over 8000 tons
B、Petrol stations with an annual sales volume of more than 5,000 tons in cities with excessive ozone concentration
C、Other service stations identified by the provincial environmental protection agency as requiring the installation of an on-line monitoring system
D、Petrol stations with an annual sales volume of more than 5,000 tons
A、Accurate opening pressure of the valve (lower than the inlet pressure > 1kPa when the oil and gas recovery device is regenerated)
B、Select a proper one-way valve to minimize the opening pressure and flow resistance of the valve
C、Oil and gas recovery pipe diameter shall not be less than DN80
D、Resistance of oil and gas recovery pipe coupling valve (improved structure)
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