问题
选择题
要得到纯净干燥的氢气，最好采用[ ]
A．向上排空气法
B．向下排空气法
C．排水集气法
D．用排水集气法收集后再经过干燥管进行干燥
答案
答案：D
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要得到纯净干燥的氢气，最好采用[ ]
A．向上排空气法
B．向下排空气法
C．排水集气法
D．用排水集气法收集后再经过干燥管进行干燥
答案：D
| 完形填空。 | |||
| My pen friend is a kind and friendly girl. She is in England. Her 1 is Connie. I meet Connie 2 the Internet, and we are both twelve years 3 . First, I 4 a letter to her and introduce my hobbies, my school and my daily life. A few days later, I receive Connie’s 5 . She 6 me a lot about herself. I learn that she loves languages, sports and movies. She likes China and Chinese food very much. She tells me something about England, too. Connie is good at English, French（法语）and Spanish（西班牙语）, so I ask her to 7 me a little of them. Connie wants to learn some 8 , but it’s very difficult for her. Through Connie, I know 9 about the world outside. I would like to 10 Connie some day in England. | |||
| ( )1. A. hobby ( )2. A. on ( )3. A. young ( )4. A. read ( )5. A. book ( )6. A. asks ( )7. A. teach ( )8. A. English ( )9. A. more ( )10. A. call | B. name B. for B. big B. sing B. letter B. says B. help B. French B. less B. write | C. age C. at C. small C. write C. call C. talks C. give C. Chinese C. few C. visit | D. job D. in D. old D. draw D. photo D. tells D. answer D. Spanish D. little D. help |