问题
选择题
下面是某同学在一次测验中的计算摘录：
①3x3·（-2x2）=-6x5；②4a3b÷（-2a2b）=-2a；③（a3）2=a5；④（-a）3÷（-a）=-a2，其中正确的个数是
[ ]A.1个
B.2个
C.3个
D.4个
答案
答案：B
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下面是某同学在一次测验中的计算摘录：
①3x3·（-2x2）=-6x5；②4a3b÷（-2a2b）=-2a；③（a3）2=a5；④（-a）3÷（-a）=-a2，其中正确的个数是
[ ]A.1个
B.2个
C.3个
D.4个
答案：B
| 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 |