问题 选择题

已知天然气的主要成分是CH4,是一种会产生温室效应的气体,等分子数的CH4和CO2产生的温室效应,前者大。下面是有关天然气的几种叙述:①天然气与煤、石油相比是比较清洁的能源;②等质量的CH4和CO2产生的温室效应也是前者大;③燃烧天然气也是酸雨的成因之一。其中正确的是 [ ]

A.②③

B.①②③

C.①②

D.①③

答案

答案:C

问答题

杜永生、杜喜生、杜满生、杜海生、杜海鱼系同胞兄妹。他们的父亲于1994年去世后,杜永生即成家另过,只留母亲杨三妮和杜喜生、杜海生、杜满生、杜海鱼在一起生活。2001年,杜永生以700元价款买下村里的平房三间、马棚一间。2003年,杜永生出面为此房产申领了“宅基地使用证”,证内填明户主是杜喜生,家庭成员为五口人。该村的宅基地清查登记表上记载,宅基地使用证上所填的五口人,是户主杜喜生和家庭成员杨三妮、杜海生、杜满生、杜海鱼。这五口人曾对此房产管理使用过一段时间。但杜永生仅在2003年口头答应过将争议房产以原买价出卖给杜喜生,但双方至今未交付房产和价款,也未办理房屋买卖契税及书面合同,房屋产权证明仍在杜永生手中。2004年杨三妮去世。2009年4月原告杜海生、杜满生、被告杜喜生之间因家务发生纠纷,杜永生在此时声称争议房产只转让给杜喜生一人所有,并将他保存的宅基地使用证上所填的“五口”人改为“一口”人。同年7月,经杜喜生联系,以1800元价款将争议房产出租给邻居卢维柱使用,但承租人所交的房屋租金却是由杜永生收取的,且最后议定房屋出租价是900元。杜海生、杜满生以房产是全家共有财产为由,提起确权诉讼。
问:根据上述案情,分析本案中房屋的所有权归属。

阅读理解

阅读理解。

     MySpace, the social networking website, is different from other websites which only provide stories about

other people. MySpace is a place that allows you to broadcast your own stories and persona information to as

many people as you like. Started two years ago, it is a big source of information for and about American kids.

     Teenagers and their parents feel very differently about it. Teens are rushing to join the site, not sharing their

parents' worries. It signals yet another generation gap in the digital era.

     For teenagers, it is a reliable network to keep in touch with their friends. They will often list their surnames,

birthdays, after-school jobs, school clubs, hobbies and other personal information.

     "MySpace is an easy way to reach just about everyone. I don't have all the phone numbers of all my

acquaintances. But if I want to get in touch with one of them, I could just leave them a message on MySpace."

said Abby Van Wassen. She is a sixteen-year-old student at Woodland Hills High of Pittsburgh, Pennsylvania.

     Parents on the other hand are seriously concerned about the security problems of MySpace.

     "Every time we hold a parents meeting, the first question is always about MySpace," said Kent Gates, who

travels the country doing Internet safety seminars (研讨会). The National Center for Missing and Exploited

Children has received at least 288 MySpace-related complaints, according to Mary Beth Buchanan, a lawyer in

Pittsburgh.

     "Your profile on MySpace shows all your personal information to anyone on the Web. And MySpace even

lists this information by birthplace and age. It's like a free checklist for troublemakers and it endangers children,"

Buchanan said.

1. From the passage we can learn that MySpace ____.

A. brings about the generation gap

B. is very careful about people's privacy

C. encourages you to list your personal information

D. lists the telephone numbers of your friends

2. Why are some parents against MySpace?

A. Because MySpace has a bad influence on their children.

B. Because they don't want to pay so much money for MySpace.

C. Because it takes up too much of their children's spare time.

D. Because troublemakers can easily approach their children through the site.

3. What can we infer from "Every time we hold a parents meeting, the first question is always about MySpace"?

A. MySpace has become a top issue troubling parents.

B. MySpace often holds parents meetings.

C. MySpace is quite popular-with parents.

D. Parents have lots of questions about the website.

4. The writer's attitude towards MySpace is ____.

A. negative

B. positive

C. optimistic

D. objective