焦炉燃烧放散装置由哪几部分构成，各起什么作用？

D

Annual holidays have become a luxury and are no longer a staple of family life, according to government research.

A getaway of a week or more is no longer considered essential by many families and is often beyond their reach, said the analysis of what parents and children say they really need. Fashionable clothes for the children, expensive birthday parties and lots of toys are also on the list of luxuries families don’t have to have. Instead, recession-hit parents are thinking of the future, and the things they want for their children centre around learning to behave properly, good education and good health.

Their picture of what a family ought to have includes a space to eat together away from the television, plenty of fruit and vegetables, and bicycles so children can get exercise.

The breakdown of necessities and luxuries was prepared by researchers from the Department for Work and Pensions(DWP) who were trying to establish an up-to-date picture of what parents say they really need.

Their findings show how families have scaled down their expectations in the face of economic difficulties — how parents are now concentrating their attention and money firmly on the long-term interests of their children. Many believe that while it is vital for a family to do things together, day trips or weekend breaks are enough.

Spending on furniture or decorating the house was also considered luxurious, unless the state of the home was so bad it became difficult to invite visitors in.

Instead, researchers said: A family home should have an area where the family can eat together, not on their laps in front of a television. Families should be able to go on outings, overnight trips and possibly short holiday: the fact of being able to share these experiences is more important than the precise activity and its cost.

71. It can be inferred that ______________.

A. a week or more holiday is considered beyond many families’ reach

B. children hardly ever need fashionable clothes and lots of toys

C. what a family should have is basic things that they must have

D. annual holidays were once considered necessary and vital

72. In the opinion of most parents, _____________.

A. families can watch TV together in order to keep up their relationship

B. day trips or weekend breaks are enough for families to share experiences

C. their expectations should be increased in the face of economic difficulties

D. a week’s holiday is an essential minimum during the financial crisis

73. Which of the following is TRUE of the researchers from the DWP?

A. They confirm many families still need at least a week away on holiday each year.

B. They learn it is insignificant for a family to do things with each other regularly.

C. They want to know what parents really need in the face of economic difficulties.

D. They found spending on furniture or decorating the house was thought valuable.

74. We can conclude from the last paragraph____________.

A. being able to share experiences is important for families

B. a family needs at least a week away on holiday each year

C. a family home should have a comfortable area to watch TV

D. going on outings and overnight trips is wasting time for families

75. What does the author mainly discuss in the text?

A. Cycling is very important for children’s health.

B. Family holidays once a year have become a luxury.

C. It is vital for parents to eat together with children.

D. Parents are concerned with children’s future.

截止阀主要是由阀座、阀体、阀盖、（）、阀杆、密封座圈、传动机构等组成。

A、阀瓣

B、阀板

C、连接法兰

D、密封圈

我国运动员许海峰在哪一届奥运会上为中国夺得了第一块奥运会金牌[ ]

A．第23 届

B．第24 届

C．第25 届

D．第26 届

华讯集团公司下属甲、乙、丙三个全资子公司，2007年10月各公司经营情况如下： (1)甲公司为生产型企业，属于增值税的一般纳税人。 ①2007年10月购进原材料一批，增值税专用发票注明实价500万元，增值税85万元，全部用于生产M、W两种产品，同时收到对方给的回扣26万元。 ②购进生产用原材料总价格600万元，贷款已付，生产已耗用50%的原材料，但增值税专用发票未到。 ③M产品增值税税率为17%，w产品增值税税率为13%，甲公司对两种产品的销售收入未分开核算，含增值税售价共2100万元。 ④随同产品出租包装物，租金收入共28.2万元。 (2)乙公司是集住宿、餐饮、娱乐一体化服务的酒店。 ①2007年10月餐饮收入160万元，住宿收入240万元，营业税税率为5%。 ②夜总会门票费、台位费收入共380万元，客人烟、酒、饮料消费收入220万元，保龄球收入150万元。该市规定夜总会等娱乐场所的营业税税率为20%。 ③酒店小卖部出售纪念品总收入20.8万元。 (3)丙公司主要进行进出口贸易，属增值税一般纳税人。2007年10月进口小汽车一批，关税完税价格800万元，关税税率为50%，消费税税率为40%，增值税税率为17%。 要求：根据以上资料分别计算每个子公司应交税金的种类和金额。

按GB5044《职业性接触毒物危害程度分级》分级规定，下列属于II级（高度危害）的有（）

A、氯乙烯

B、氨

C、甲醛

D、二硫化碳