如何进行oracle数据库性能优化

2. get school before 8:00 am. 2. make noises(噪音)in class

1、1、调整数据结构的设计。这一部分在开发信息系统之前完成,程序员需要考虑是否使用ORACLE 八、单词拼写(共10小题,计10分)数据库47. The word "extra" in Paragraph 3 means _________.的分区功能,对于经常访问的数据库表是否需要建立索引等。

misses怎么读_misses怎么读语音misses怎么读_misses怎么读语音


misses怎么读_misses怎么读语音


2、2、调整应用程序结构设计。这一部分也是在开发信息系统之前完成,程序员在这一步需要考虑应用程序使用什么样的体系结构,是使用传统的/两层体系结构,还是使用Browser/Web/Database的三层体系结构。不同的应用程序体系结构要求的数据库资源是不同的。

3、3、调整数据库SQL语句。应用程序的执行最终将归结为数据库中的SQL语句执行,因此SQL语句的执行效率最终决定了ORACLE数据库的性能。ORACLE公司使用ORACLE语句优化器(Oracle Optimizer)和行锁管理器(row-ll mar)来调整优化SQL语句。

Miss white是什么意思,还要中文读音?

4.缺席,旷工。

意思:怀特

二.听长对话,回答问题(共6小题,计12分)

中文读音: 米丝 外特

miss

n.

1. 有两个以上未婚罗滨逊姐妹时,姐姐通常加在姓前叫 M- Robinson,妹妹加在姓及洗礼名

前叫 M- Joan (Robinson);姐妹一起叫 the M- Robinsons 或〔古语〕 the Misses

2. 〔pl.〕 的 misses 发音与 Mrs. 相同。

3. 〔对女佣人,女店员的称呼〕。

4. A. 513 B. 1,646 C. 2,159 D. 3,805〔古语〕情妇。 a saucy miss 莽撞的姑娘。

5.〔谑、蔑〕姑娘,(特指)小女学生。

vt.

把(看准的东西)失去,让…跑掉,没打中;没猜中;没到手,没拿到,没抓到,没达到;没

2.不守(约),不尽(义务);缺;发觉没有[不在]。

3.因…没有[不在]而感觉[不方便];惦念。

5.逃却,免去,躲避。

vi.

1.打不中,打歪;失败。

2.不见;得不着,没…着 (of in)。

white

n.

怀特〔姓氏〕。

adj.

1.白(色)的,雪白的;白晰的,带白色的;苍白的。

2.白种人的。

3.银制的;白衣的;白发的。

4.洁白的,清白的,纯洁的;善良的;〔口语〕高尚的,公正的;无恶意的。

5.幸福的。

6.无色的,透明的;(葡萄酒)浅色的;〔英国〕(咖啡)加牛奶的 (opp. black)。

7.保守的;的 (opp. red)。

帮忙写一篇英语作文《家庭生活与学校生活的区别》

十.书面表达(共1题,计10分)

Nowadays many students live in school intead of coming home.They think it can se more time for studying.While others prefer staying home,they hold the view that home can give us warmth and bring comforts at the same time.

上(车子等);没看到,看漏;漏掉;失落;达不到…的标准,够不上,不够。

Well ,in my opinion.Wher living in school or stayRobinson.ing in depends on our own will.A boy who likes playing at home may be better living in the school,which can do good to his study.On the contrary,a shy girl is suped to stay in.She may feel lonely when sleeping at school and misses his parents.

Anyhow,we wish you a suitable cho for yourself!

5月七年级英语下册月考试卷(2)

58-59. Bob can play soccer and basketball. (改为否定句)

46. A Japanese worker works ________ more hours a year than a French one.

A. 正常的 B. 额外的 C. 有用的 D. 少量的

48. People in ________ get only two weeks of paid vacation a year.

A. France B. Germany C. the United States D. Great Britain

49. Which of the following is TRUE according to the passage?

A. No companies offer(提供) vacations to their workers.

B. Many people say they he enough time to relax.

C. Not all workers can get more money for more work.

D. More than half of workers use all their vacation days.

50. What can we infer(推断) from the passage?

A. Workers in the United States get the longest paid vacation.

B. Many people he vacations long enough.

C. Work hours are the same around the world.

D. There are a lot of dull people in the world.

第二节:阅读1--5题的人物信息,然后从A、B、C、D和E中,选出符合他们要求的选项。

51.Jeff likes sports and trel. He would like soming that can him spend boring time on his journey(旅途).

52. Mrs. Green doesn’t like to exercise, but she likes cooking and reading books about foreign places.

53. Mr. Dean wants to improve(提高) his garden(花园) during summer. So he would like soming that could him to do that.

54. Lisa , a 22-year-old girl, worries about her weight(体重). She is wondering how to lose weight(减肥).

55. Sophia likes to look art. When she is free, she enjoys listening to the music. Now she plans to learn soming about music.

A. Learn how to play the guitar. This popular video s the beginner to become

a guitar player in just 200 hours.

B. Road trips. A program loved by young people, especially those fat girls. Join in it and make yourself become thin.

C. The new pocket MP4. This kind of MP4 fits right into your pocket. It lets you listen to your forite artist, n when you are on a journey.

D. Singapore. The story of a city. This book is about the history. the culture and the forite dishes of this all country.

F. Special scissors(剪刀). This kind of tools(工具) will make it easy to deal with(处理) flowers and trees. Anyone can learn to use it quickly.

七、句型转换 (每小题1分,计10分)

56-57.It takes about 10 minutes to get to school.(对划线部分提问)

does it take to get to school?

Bob _______ play soccer basketball.

4. M: Who’s the boy on the bike?60-61. When do you usually he supper? (改成同义句)?

do you usually he supper?

62-63. He often watch TV with his family. (用now改写句子)

He TV with his family now.

64-65.They often go to their school on their bikes. (改成同义句)

They often their bikes school.

根据已给的首字母给各句空白处填上一个适当的词,使句子完整、正确。

66. I can’t play the guitar. Can you s______ me how to play it?

67. I want to find a ho near here. Is there a ho in the n______?

68. Peter always forget things, so I don’t think he can r______ your phone number.

69. There is no bridge so they he to c the river on a ropeway.

70. He really m his parents when he studies in England.

72. I can’t go out on school nights, but t_______ my parents allow(允许) me to go out to play.

73. It’s a q past sn now. Let’s hurry or we will be late.

74. In the ning, I e watch TV or play comr s.

75. ─What is she doing? ─She is t on the phone.

九.词语填空(共10小题,计10分)

用方框中所给的单词适当形式填空,使短文通顺、正确、连贯(每个单词限用一次)。

happy, closW: She is wearing a skirt.e, angry, parent, listen, make, if, long, but, important

Are you the only child in the family? If so, you are the most 76 in your family. 77 _ are the closest people to you in the world. But a lot of middle school students he a problem. They feel they're not as 78 to their parents as before. They n think their parents are unfair to them.

Some students complain(抱怨) that their parents say a lot to them, but nr 79_______ to them. Some of them n say it 80 .

“My parents don't allow(允许) me to play comr s, 81 other ctes are doing that”.

Others say, when they're 82 phone calls to friends, their parents like to ask if they're speaking to a boy or a girl. These make them very 83 . Some students n decide(决定) to lee home. But they don't know running away may bring them some more problems. Show your parents you're growing up. Then they'll feel you're no 84__________ a all child.

85 you follow(听从) the a, you'll he a happy life and nr think of running away.

如你是七年级四班的Li Ming。请你根据以下信息写一封信给你的笔友Mike, 描述你们的英语老师Ms. Wang 并且写一写你们班的`班规和你的感受。

王老师:中等身高,卷发,关心我们,经常与我们交流谈话

Things we he to do Things we can’t do

1. Clean up our desks. 1. eat in class

3. … 3. …

注意:

1. 书信应包括上述表格的全部内容,并请你补充你的至少两条班规和你的感受。

3. 词数:60个左右。

Dear Mike,

Now, I’m a middle school student. I’m in Class Four and Grade Sn.

___________________________________________________________________

Yours, Li Ming

七年级英语质量检测卷(2014.5.27)

二. 听小对话,回答问题。(共5小题,计5分)

听下面五段小对话。每段对话后有一个小题。从题中所给的A、B、C三个选项中选出选项,并标在试题的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。

1. M: How does your father go to work ry day, Linda?

W: He drives a car to work.

2. M: What time do you often play s in the afternoon?

W: We often play s at half past four.

3. W: What about this yellow shirt?

M: It’s n and cheap, I’ll take it.

W: I think he is Mike.

5. M: Where is your father, Ann?

W: He’s gone to the hospital. My grandpa is ill.

听下面一段话,回答第6至8三个小题。现在,你有15秒的时间阅读这三个小题。

6-8 W: Good morning, Mr. Wang.

M: Morning, Miss Green.

W: You are walking today. Don’t you usually come to school by bike?

M: Yes, I do. But sometimes I walk. I like walking.

W: Walking is good. Look at the sun. It’s a fine day for walking today.

M: That’s right. And the air today is n and clean. What about you, Miss Green? Do you often come to school by bike?

W: Yes, but not today. My bike is broken.

M: Broken? Oh, I see.

听下面一段话,回答第9至11三个小题。现在,你有15秒的时间阅读这三个小题。

9-11 W: Excuse me, sir. I can’t find my mother now.

M: Don’t cry, little girl. We can’t find her if you cry. What’s she wearing?

M: What color is it?

W: Er…blue.

M: Was she wearing a hat?

W: Yes, a white hat.

M: OK, I’ll you to find her.

三.听独白,回答问题(共4小题,计8分)

听下面一段独白,听独白前,你有20秒钟的时间来阅读有关材料和4个小题。听完独白后,你有20秒钟的时间来选择有关选项。独白连续读两遍。

Hello! My name is Tony. Today I am going to talk about my future. My dream is to be a writer in the future. I think it’s very interesting. How am I going to do that? First I need to be a good reader. I must read a lot ry day, because reading is ful for me to become a good writer. Next I must do my best to pract writing more. I want to write down what I see. Third, I also need to find a part-time job. I want to trel all over the world with the money. I think it’s ful for me to be a writer.

听力部分

1-5 BCCBC

6-11 BCB CAC

11-15 BCAB

笔试部分

单选题

16-20 DCBDC

21-25 BCDBD

26-30 CACAC

完形填空

31-35 DCAAB

36-40 DDCDA

阅读理解

41-45 DDBDA

46-50 ABCCD

51-55 CDFBA

句型转换

56-57 How long 58-59 can’t or 60-61What time 62-63 is watching 64-65 ride to

首字母拼写

66.show 67. neighborhood 68.remember 69.cross 70.misses 71.er 72.tonight 73.quarter 74.either 75.talking

词语填空

76. important 7. Parents 78. close 79. listen 80. angrily 81. but

82. 83. unhappy 84. longer 85. If

写作

初一快段考了,我要找些复习题

71. People kill elephants for their ivories(象牙), so elephants are in d______.

若a,b互为相反数,m,n互为倒数,x的平方等于4,则100a+99b+mnb+x的平方=?

2. 开头部分已经写好(不计词数),你只需接着写。

若多项式?

E. Spanish in 10 Minutes a Day. A fun, 132-page complete language learning work book. Includes 150 sticky labels: flash cards, a crossword puzzle and more. It is one of the best-selling language series in print.

为什么括号里填watching,watch不行吗?为什么要加上ing?什么时候加ing?加ing表示什么?

说详细一

英语5个元音字母A,E,I,O,U

必考!!!!!