先观察下列等式，再回答问题：①1+112+122=1+11-11+1=112②1 发布时间：2017-06-04 20:47 │ 来源：www.tikuol.com 题型：解答题 问题： 先观察下列等式，再回答问题：①1+112+122=1+11-11+1=112②1+122+132=1+12-12+1=116③1+132+142=1+13-13+1=1112根据上面三个等式提供的信息，请猜想1+142+152的结果．
题型：解答题 完形填空。 Mr. Jackson works in a college. He likes reading and often 1 some books from the library.He keeps 2 to the radio every morning and reading 3 after dinner. So he knows much and teaches well. His 4 worship (崇拜) him very much. Mike, Mr. Jackson's little son, is only nine. He 5 likes reading books. And he often asks his father some questions. Mr. Jackson always thinks he is too 6 to understand him, so he chooses 7 ones to answer. Of course the boy is not satisfied with (对......满意) it. One day Mike read 8 about the electric lights and was 9 it when his father 10 him to do homework, he went on thinking 11 it. He asked him 12 questions, and his father answered all.Then his father said proudly, "Fathers always know 13 than sons!" The boy thought for a while and said, " 14 ." "Oh? Why?" Mike didn't answer and asked instead "Who invented the electric lights?" "Thomas Edison," answered Mr. Jackson. "Why didn't his father invent them then?" Mike asked again. Looking at his son, Mr. Jackson didn't know 15 to answer! ( ) 1. A. finds ( ) 2. A. listening ( ) 3. A. letters ( ) 4. A. children ( ) 5. A. also ( ) 6. A. old ( ) 7. A. wrong ( ) 8. A. something ( ) 9. A. worried about ( ) 10. A. let ( ) 11. A. at ( ) 12. A. few ( ) 13. A. more ( ) 14. A. I don’t think so( ) 15. A. when B. sells B. watching B. newspapers B. classmates B. never B. clever B. easy B. everything B. interested in B. made B. of B. a little B. most B. I agree B. what C. borrows C. touching C. messages C. students C. even C. bright C. difficult C. anything C. afraid of C. told C. to C. a few C. less C. I hope so C. which D. reads D. reading D. story D. friends D. still D. young D. right D. nothing D. tired of D. had D. from D. little D. fewer D. I’m afraid so D. where 查看答案
题型：解答题 若用如下的SQL语句创建一个表S： CREATE TABLE S(S# CHAR(6)NOT NULL，SNAME CHAR(8)NOT NULL， SEX CHR(2)，AGE INTEOER)现向表中插入如下行时，可以被插入的是 ()。A． ('991001'，'李四'，女，'23')B． ('990746'，'张三'，NULL，NULL)C．(NULL，'王五'，'男'，32)D．('992345'，NULL，'女'，25) 查看答案