冬半年影响我国的气象灾害是 A．台风 B．寒潮 C．旱灾 D．暴雨

物业管理成本构成中，（）是企业在从事物业管理活动中发生的各项直接支出。

A.营业成本

B.期间费用

C.日常管理费用

D.经营管理费用

农民田某于2001年去国外打工时在途中遇海难失踪，从此杳无音讯。2006年其妻胡某向当地人民法院申请宣告田某死亡，人民法院经审理判决宣告田某死亡。由于年幼的女儿田燕身体一直不好，家中又没有足够的经济能力给田燕治疗，2007年胡某将田燕送给膝下无子的邻村姚某收养，并办理了合法的手续。2008年，失踪多年的田某突然返回，法院随即撤销了对田某的死亡宣告。田某要求与胡某恢复夫妻关系，并提出田燕的收养未征得他的同意，违反我国《收养法》，是无效的，要求撤销收养合同。姚某与胡某都不同意，田某诉至法院。
问：

田燕的送养是否有效

阅读理解

     The Internet has led to a huge increase in credit-card fraud. Your card information could even be for

sale in an illegal web site.

     Web sites offering cheap goods and services should be regarded with care.

     On-line shoppers who enter their credit-card information may never receive the goods they thought

they bought. The thieves then go shopping with your card number - or sell the information over the

Internet. Computers hackers have broken down security systems, raising questions about the safety of

cardholder information. Several months ago, 25, 000 customers of CD Universe, an on-line music retailer(零售商), were not lucky. Their names, addresses and credit-card numbers were posted on a Web site

after the retailer refused to pay US $157, 828 to get back the information.

      Credit-card firms are now fighting against on-line fraud. Mastercard is working on plans for

Web - only credit card, with a lower credit limit. The card could be used only for shopping on-line.

However, there are a few simple steps you can take to keep from being cheated.

     Ask about your credit-card firm’s on-line rules: Under British law, cardholders have to pay the first

US $78 of any fraudulent(欺骗性的) spending.

    And shop only at secure sites; Send your credit-card information only if the Web site offers advanced

secure system.

     If the security is in place, a letter will appear in the bottom right-hand corner of your screen. The

Website address may also start https: //-the extra “s” stands for secure. If in doubt, give your credit-card

information over the telephone.

     Keep your password safe: Most on-line sites require a user name and password before placing an

order. Treat your passwords with care.

1. What do most people worry about the Internet according to this passage?

A. A lot of stolen credit-cards were sold on the Internet.

B. Fraud on the Internet.                  

C. Many Web sites are destroyed.    

D. Many illegal Web sites are on the Internet.

2. What is the meaning of “fraud”?

A. Cheating.

B. Sale.

C. Payment.

D. Safety.

3. How can the thieves get the information of the credit card?

A. The customers give them the information.

B. The thieves steal the information from Web sites.

C. The customers sell the information to them.

D. The thieves buy the information from credit-card firms.

4. How many pieces of advice does the passage give to you?

A. Four.

B. Three.

C. Five.

D. Six.

5. You are shopping on the site: http: // www. Shopping. com, and you want to buy a TV set,

    what does this article suggest to do?

A. Order the TV set at once.                    

B. Do not buy the TV set on this site.

C. E-mail the site your credit-card information.

D. Tell the site your password and buy the TV set for you.

单相照明每一回路负荷电流一般不应超过（），灯数<包括插座>不宜超过25个。

多数鱼类背部发黑、腹部发白，其原因是（）。

A．长期进化形成的保护色

B．背部比腹部接受光线多，导致色素沉淀

C．背部比腹部黏膜厚，吸收光线多

D．背部鱼鳞多，吸收光线多