据《素问·经脉别论》，在谷食精气的输布过程中未言及的脏是（）。 A.肺 B.心 C.

下列句子中加点的词语解释正确的一组是（）

①枉用相存（存在）            ②渠会永无缘（他）

③虽与府吏要（要求）          ④始速祸焉（招致）

⑤无物以相之（帮助）          ⑥抑本其成败之迹象（根据）

⑦肇（开始）锡余以嘉名        ⑧泰山之阳，汶水西流（北面）

A．①③④⑦

B．②④⑥⑦

C．①④⑤⑧

D．②③⑥⑧

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

下列属于无效旅游合同的是（）。

A.旅行社以欺诈手段骗取旅游者订立的合同

B.旅行社间恶意串通，约定价格同盟的合同

C.旅行社组织出境旅游项目，实为偷渡旅游者的合同

D.旅行社组织旅游者前往澳门参加赌博的旅游合同

下列关于实验室进行血型检测的描述正确的是（）

A.用抗－A.抗－B血清检测血液标本的A.BO血型的过程，称为正定型

B.用A.细胞.B细胞检测标本血浆（或血清）型的过程，称为反定型

C.用O细胞检测标本血浆，以检测待检血是否有不规则抗体

D.用抗－D血清检测血液标本的Rh血型

剪切对坯料质量有什么影响？