与电弧焊相比，气焊火焰温度低，热量分散。

回忆课文内容，回答问题。     

1．哈哈！还是我的记性好。    

     作者读书____________、____________，鲁迅先生不乏风趣，暗含___________________ 。鲁迅先生送书给作者，更表现了鲁迅先生对青少年的_________和__________。这样的伯父怎能不让人_________呢？    

2．你想，四周黑洞洞的，还不容易碰壁吗？    

     鲁迅先生用“四周黑洞洞的”来比喻_____________，用“碰壁”来比喻_______________。全句的意思是________________________________________________________________ ，这样写的好处是________________________________________________________________________________________________。

3．扁鼻子军官气得暴跳起来，嗷嗷吼叫：“枪毙！枪毙！拉出去！”    

     这句是通过__________________描写，把敌人_____________________________的性格特征展现在我们面前。

要对社会现象作详尽的了解，探索规律，便一定要走进现实社会中找资料，绝不能凭空臆度。要明白事情的因果关系，建立有关的理论，不能没有实质的资料，以供验证理论之用。 所以( )。

A．从事社会研究的人，一定同时也是从事实践工作的人

B．要从事社会研究，不能不从实际工作中收集资料

C．依据实质的资料作社会研究，则不具有理论性

D．社会研究只需有实质的资料就可以了

One of the most unknown youth culture in the United States is that of high school and college runners．Not everyone who has ever been on their school’s track team is part of this culture．To be a part of this culture you need to do a lot Of running，knowing how it feels to race to exhaustion(筋疲力尽)，see no reason why any weather should keep you from running，and be a little crazy．

I，myseIf，am part of this culture．I ran cross-country，which is running outside over uneven ground，for my high schoo1．I joined this culture when 1 was in ninth grade. As soon  as 1 was on the team it didn’t take very long for me to become very involved and have fun running. As a freshman 1 wasn’t that fast but 1 was giving the effort．It was the effort that makes me part of the running culture．

There are a few things that set the youth culture of runners apart from the overall  running culture．One of the many differences is that teen runners usually run in large groups，with a lot of conversation and fooling around．Young runners play games and talk to their friends when they run．While adults may run with a friend and have a conversation，you will rarely see twenty of them running through the woods yelling back and forth at each other．Young runners also make up a lot of games．My friends and 1 would throw balls while running and invented a game we called Shockey，which was pretty much soccer on lce.

Most of youth runners run for competition and not for fitness．Young runners want to run in races not to just lose weight like many adults．This means they run a lot faster and tougher generally．To lose weight you can just jog easily but to race you have to really push yourself and run to exhaustion．It’s a completely different style of running and that is what builds this culture .

1．The passage is mainly about __________.

A．the differerices between youth culture and adult culture

B．the youth running culture in American schools

C．youth culture which is mysterious to school students

D．how to become part of the culture of school runners

2．Which of the following are the differences between young runners and adult runners?

(1)Adults don’t run long distance．

(2)Adults don’t play games while running．

(3)Adults don’t push themselves to the 1imit

(4)Adults don’t run in 1arge groups．

A．(1)(2)(3)    B．(1)(2)(4)    C．(2)(3)(4)  D. (1) (3)(4)

3．We can infer from the passage that__________．

A．the writer is strong--willed

B．running is exhausting and boring

C．adult running is not as good as youth running

D．adults are not as competitive as youths

4．The writer wrote the passage to __________．

A．criticize adult running

B．advertise his school track team

C．introduce something unknown to his readers

D．tell his readers to get involved in running

某企业2003年新增留存收益为300万元，所计算的可持续增长率为10%，若2004年不增发新股，且能保持财务政策和经营效率不变，预计2004年的净利润可以达到1210万元，则2004年的股利支付率为( )。

A．75.21%

B．72.73%

C．24.79%

D．10%

根据刑事诉讼法的有关规定，下列说法中，哪些是正确的 ①对于贪污贿赂犯罪等重大复杂的2人以上的共同犯罪案件，人民检察院可以在5日以内安排律师会见的时间 ②询问不满18周岁的证人，应该通知其法定代理人在场 ③对人身伤害的医学鉴定或者对精神病的医学鉴定有争议需要重新鉴定，由省级人民政府指定的医院进行 ④在执行逮捕、拘留的时候，遇有紧急情况，不另用搜查证也可以进行搜查

A．①②③④

B．②③

C．②③④

D．①④