假设太阳垂直照射到1cm2的地面上，每年可获得428400J的热量，用这些热量给 发布时间：2017-07-29 18:45 │ 来源：www.tikuol.com 题型：问答题 问题： 假设太阳垂直照射到1cm2的地面上，每年可获得428400J的热量，用这些热量给水加热可以使多少千克水从20℃升高到60℃？
题型：问答题 完型填空。 Have you learned other languages 1 Chinese? I have learned English 2 three years at school. At first, itwas hard for me to 3 the teacher when she talked to the class. She spoke too quickly. Also, I 4 speak in class because I thought my classmates might laugh at me. I couldn't always make complete sentences, 5 . AndI always feel 6 in English classes. But now I am enjoying 7 English. I have 8 that it doesn't matter if you don't understand every word. One of the secrets of becoming a good language 9 is to do lots of listening practice. I often watch English programs on TV and listen to English songs. I've also 10 the English club at school to improve my oral English.And I 11 the day's lesson before class, I try to understand the main ideas so that I 12 answer the teacher's questions in class. I also 13 lots of grammar notes in class. And 14 practice my writing, I keep a diary. Lastbut not least, I 15 trying and never give up. ( ) 1. A. except ( ) 2. A. since ( ) 3. A. understand ( ) 4. A. is afraid of ( ) 5. A. neither ( ) 6. A. sleep ( ) 7. A. to learn ( ) 8. A. come to realize ( ) 9. A. student ( ) 10. A. join ( ) 11. A. review ( ) 12. A. can ( ) 13. A. take ( ) 14. A. according to ( ) 15. A. keep in B. besides B. in B. realize B. is afraid to B. either B. asleep B. learn B. turned to realize B. learner B. joined B. preview B. will B. make B. in order to B. keep on C. beside C. for C. hear C. was afraid to C. also C. sleepy C. learning C. wanted to realize C. customer C. to join C. interview C. shall C. do C. thanks to C. keep up D. above D. at D. listen to D. was afraid of D. too D. sleeping D. learned D. gone to realize D. study D. joining D. view D. must D. get D. instead of D. keep down 查看答案