对于四舍五入得到的近似数1.00×104，下列说法正确的是（ ） A．有3个有效 发布时间：2017-05-09 03:56 │ 来源：www.tikuol.com 题型：选择题 问题： 对于四舍五入得到的近似数1.00×104，下列说法正确的是（ ）A．有3个有效数字，精确到百位B．有5个有效数字，精确到个位C．有2个有效数字，精确到万位D．有3个有效数字，精确到百分位
题型：选择题 完形填空。 Each of us makes mistakes from time to time. In fact, we can 1 a lot from our mistakes. Donnie was a 2 student and never answered questions in class. He was 3 to make mistakes. He never finished his homework 4 he didn't want to make any mistakes. Nothing changed 5 Marry Anne, a teacher, came to our 6 . One morning, Marry Anne asked Donnie to 7 some questions. After a while Donnie was in tears because he made a mistake. 8 Marry Anne got a box full of erasers from the desk. "Look, Donnie," she said standing 9 him."I've got something to show you." She 10 the erasers, one at a time, and put them on the desk. "See these erasers, Donnie?" she continued."Do you know 11 the erasers become smaller and smaller? That's because we make mistakes. But we erase the mistakes and try 12 . That's what you must learn." "Here," she said,"I'll 13 one eraser on your desk, so you will remember that 14 may make mistakes." Donnie looked at Marry Anne and smiled. Donnie 15 a lot from then on. He knew that everyone had the permission to make mistakes as long as you learned them and tried again. ( )1. A. take ( )2. A. good ( )3. A. glad ( )4. A. because ( )5. A. after ( )6. A. row ( )7. A. answer ( )8. A. Suddenly ( )9. A. on ( )10. A. put out ( )11. A. when ( )12. A. more ( )13. A. forget ( )14. A. nobody ( )15. A. changed B. make B. shy B. excited B. so B. while B. class B. ask B. Quickly B. with B. took away B. how B. again B. carry B. somebody B. got C. get C. clever C. surprised C. if C. until C. team C. give C. Luckily C. beside C. took out C. what C. another C. leave C. no one C. learned D. bring D. small D. afraid D. but D. when D. classroom D. have D. Carefully D. to D. took off D. why D. one D. give D. everybody D. thought 查看答案
题型：选择题 --- Mom, I’ m going to the graduation dance tonight but I don’t think I look attractive enough.--- Oh, darling, don’ t worry. _______.A．They don’t know what beauty isB．Nobody will care about itC．You look perfect the way you areD．Impossible is nothing 查看答案