SNMPV2弥补了SNMPV1的什么弱点 ( )A．安全性 B．数据组织 C．性能

阅读理解。

     Mr. Robinson never went to see a dentist, because he was afraid, but then his teeth began aching a

lot, and he had to see a dentist. The dentist did a lot of work in his mouth for a long time. On the last

day Mr. Robinson asked the dentist, "How much is all the work going to cost (花费)?"

     "Twenty-five dollars," said the dentist. But he didn't ask him for the money. After a month

Mr. Robinson phoned the dentist and said, "You haven't asked me for any money for your work." "Oh,"

the dentist answered, "I never ask a gentleman (绅士) for money." "Then how do you live?" Mr. Robinson

asked. "Most gentlemen pay me quickly, the dentist said, "but some don't. I wait for my money for two

months, and then I say, 'That man is not a gentleman,' and then I ask him for my money.

1. Mr. Robinson _____ until his teeth began aching a lot. 

A. wasn't afraid              

B. didn't see a dentist 

C. wanted to see a dentist      

D. went to see a dentist

2. _____ cost twenty-five dollars. 

A. The first day' work of the dentist  

B. The last day's work of the dentist 

C. Half the dentist's work          

D. All the dentist's work

3. When did Mr. Robinson phone the dentist? 

A. After he paid him.            

B. About thirty days later. 

C. After two months.            

D. About twenty days later.

4. The dentist said that he never asked _____ first. 

A. a woman for money            

B. the poor for money 

C. gentlemen for money          

D. people for much money

5. Mr. Robinson never went to see a dentist _____.

A. because he was afraid          

B. because he had no money

C. because he wasn't a gentleman  

D. because he didn't want to much money

20世纪70年代前甲鱼价格便宜，80年代后价格飞涨，而自然生长的甲鱼要七年才能上市，随后，江汉平原有很多人在冬季用温室不让甲鱼冬眠，这样三年即可上市，以后价格大幅度下跌，于是有的又转向养观赏龟。据此完成23一25题。

小题1:最终决定农业生产类型和产量的因素是              

A．气候

B．政策

C．科技

D．市场小题2:甲鱼能3年就上市，这是由于人们改造了

A．光热条件

B．土壤条件

C．地形条件

D．交通条件小题3:湖北江汉平原的甲鱼到上海销售，主要得益于

A．发达的通信网络

B．快捷的交通运输

C．优惠的政策

D．优越的地理位置

消防车水泵出口压力可按HB=h+hd+H1-2估算进行，hd表示()压力损失。

（A）水枪 

（B）水带 

（C）水炮 

（D）水泵

下列哪些劳动合同的解除，用人单位需要支付经济补偿

A．甲所在的国有中型企业连年亏损，为挽救企业，工厂决定解聘30位工人降低成本，甲在下岗的名单中。甲听说后盗窃车间的废旧钢材出售以泄愤，被公安机关发现，由于盗窃数额不大，被免予起诉。工厂没有再追究，但仍按计划将包括甲在内的30名工人解聘

B．乙在游乐场玩耍时不慎受伤，留下后遗症，无法再从事搬运工的工作，因为没文化，也从事不了其他工作，被单位解聘

C．丙的儿子在国外定居，要接其共同居住，由于劳动合同期限未满，而且丙在单位的职责暂时无人顶替，所以单位不同意协议解约，丙只好辞职

D．丁是单位的技术开发人员，但是近一年来该行业利润普遍下降，公司决定转向经营贸易，丁因为无用武之地，被单位解聘

· AC Milan star Kaka says a foot injury is still stopping him from returning to football. He has not played for 32 days. Kaka says he is in a lot of pain. "I hurt myself in an area that we always put pressure on." Kaka once played for a year with a knee injury, but the 26-year-old said this is much worse.
· British actress Emma used to spend more time filming than at school. But today she is ready to pay more attention to her studies. This 19-year-old girl will start at the Yale University in the autumn. "I always loved school. I just want to go back and find what else there is," she said.
· Chinese 25-year-old sports star Liu Xiang returned to Shanghai in March. He had a successful foot operation in December in Houston, and spent the next three months there for recovery and basic training. It is said that a group of doctors are ready to help with Liu’s recovery.
· Russian great tennis player Sharapova will not he playing in the MPS Group Championships, which begins in the US on Monday. Sharapova was missing the Sony Ericsson Open the week before last in Miami. She may continue training for the WTA Rome event at the beginning of May.

Among the four persons, ______ isn’t a spoils star.

A．Sharapova

B．Liu Xiang

C．Emma

D．Kaka