问题
单项选择题
高压电器有关标准规定，产品的使用环境温度为（）。
A.－40℃至＋40℃
B.高于－40℃
C.不高于＋40℃
D.在零摄氏度左右
答案
参考答案：A
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高压电器有关标准规定，产品的使用环境温度为（）。
A.－40℃至＋40℃
B.高于－40℃
C.不高于＋40℃
D.在零摄氏度左右
参考答案：A
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| Tips to keep a hearty conversation flowing On holidays we typically gather with our nearest and dearest. But 1 can be made, maintained and broken through the ways we talk to our loved 2 , according to Deborah Tannen, a George-town University professor in linguistics (语言学). She has suggestions as to how we can 3 communications at our festival dinner tables. Let's take a look. ＊A round dinning table is best for promoting a 4 conversation because everyone 5 each other. ＊Avoid 6 grandparents at the ends of a rectangular (长方形的) table, even though it is the traditional place of 7 . Elderly people may feel lonely there if they are unable to hear or keep 8 a conversation. ＊ 9 prefer to face each other and make eye contact when they talk. In contrast, men tend to look around at other things. "Guys may be more 10 keeping gazing on the TV," says Tannen. "They'll still be 11 , though.” ＊Be aware that people have different ways of talking. Each person has a different 12 of tone, rhyme, timing and how 13 of a pause is normal in a conversation. Watch for people who seem left 14 . If you feel you are doing all the talking, hold back to give others a 15 . If you feel you aren't getting a chance to speak, try pushing yourself to start 16 . ＊People sometimes get upset on big festivals 17 they stay too long in the apartment. Some families find that gatherings go more 18 if they plan for some fun 19 . So why not get a breath of fresh air? Going to a park for a walk or taking a trip to the zoo may be more 20 than just sitting around inside. | |||
| ( )1. A. demands ( )2. A. ones ( )3. A. bother ( )4. A. lively ( )5. A. scolds ( )6. A. checking ( )7. A. pity ( )8. A. up with ( )9. A. Grown-ups ( )10. A. surprised ( )11. A. thinking ( )12. A. matter ( )13. A. often ( )14. A. out ( )15. A. reward ( )16. A. talking ( )17. A. until ( )18. A. naturally ( )19. A. indoors ( )20. A. abstract | B. relationships B. those B. delay B. short B. blames B. hiding B. sorrow B. off B. Men B. relaxed B. doubting B. sense B. long B. behind B. gift B singing B. if B. coldly B. outside B. bitter | C. victories C. others C. damage C. calm C. faces C. seating C. intelligence C. away from C. People C. encouraged C. listening C. direction C. soon C. over C. hand C. dancing C. though C. quickly C. inside C. enjoyable | D. mistakes D. them D. improve D. dull D. annoys D. hurting D. honor D. out of D. Women D. upset D. looking D. point D. far D. off D. chance D. playing D. since D. smoothly D. everywhere D. cruel |