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更多“末段的最优长度为最大长度的二分之一。The optimal length of the last segment is one half of the maximum length.”相关的问题
A、Shopping at the mall.
B、Things I have done.
C、I finally can relax.
D、Walking the dogs.
| 完形填空。 | |||
| Is the world really going mad？1day I was sitting in a small restaurant2a quiet drink and a talk with a few friends when it suddenly3me that almost everyone in the restaurant was smoking. It wasn't long4the whole room was5with smoke. I asked with an apology for6to open a window to stop myself7! Nowadays air pollution is something that we hardly question any more. However, I still can't walk down the streets in any of the big cities without8that people are9the air pollution. It is time for the government departments of the world to introduce emission (废气排出) controls on all cars and10 the public transport system to encourage people to11their cars at home. A friend of mine takes flying lessons each morning and it really makes him12when he climbs above the smog layer (烟雾层) and looks down13it and thinks: "I'm breathing that!" This kind of14results from the bad management of resources. Waste things can,15should, be treated properly. House building, road construction and industrial development are all earth-moving(or earth-reducing)operations and can change the balances of16created over millions of years. I would like to17serious studies done on all these main works before they are built. Also, there should be18national parks19to keep the most beautiful parts of our countries in their natural20 . | |||
| ( )1. A. The other day ( )2. A. asking for ( )3. A. seemed ( )4. A. ago ( )5. A. filled ( )6. A. promise ( )7. A. standing ( )8. A. thinking ( )9. A. suffering from ( )10. A. increase ( )11. A. wash ( )12. A. sick ( )13. A. on ( )14. A. discussion ( )15. A. but ( )16. A. life ( )17. A. see ( )18. A. few ( )19. A. setting up ( )20. A. situations | B. Another B. drinking B. struck B. after B. full B. help B. sitting B. persuading B. dying from B. reduce B. repair B. tired B. into B. question B. yet B. mind B. start B. any B. will set up B. states | C. Every C. having C. sank C. before C. crowded C. suggestion C. talking C. deciding C. preventing from C. improve C. drive C. foolish C. from C. pollution C. still C. human beings C. enjoy C. more C. are set up C. soils | D. Each D. buying D. showed D. now D. parked D. permission D. dying D. learning D. enjoying D. raise D. leave D. excited. D. for D. operation D. and D. plants D. pay D. no D. set up D. places |
A、为充分利用地层能量可以省去首站In order to make full use of formation energy, the first station can be omitted
B、注意末段储气的要求Pay attention to the requirements of gas storage at the end
C、使运行压力接近管线承压Keep the operating pressure close to the line pressure
D、对于初期流量较小的管线，应分期建造压气站For pipelines with small initial flow, compressor stations should be built in stages
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