男性，2岁，阵发哭闹不安1天，排果酱样大便2小时，伴有呕吐。体检：脐右上方可扪及一腊
题型：单项选择题
问题：
男性，2岁，阵发哭闹不安1天，排果酱样大便2小时，伴有呕吐。体检：脐右上方可扪及一腊肠样肿块，压痛，右下腹部空虚感，肠鸣音亢进。空气灌肠在结肠受阻，阻端呈"杯口"状。首先应考虑为
A．蛔虫性肠梗阻
B．先天性结肠息肉
C．肠套叠
D．肠扭转
E．急性胃肠炎
题型：单项选择题
阅读理解。
Cheerleaders are part of athletic competitions throughout the United States. As their name says they
lead the crowd in cheering for the team it likes best.
About five years ago. cheerleaders were considered to be simply entertainers. Today there is much
more Cheerleading in America which has become another form of athletic competition. Cheerleaders today
are expected to be gymnasts and dancers. They 'are expected to be quick and strong.
Many cheerleaders are better athletes than the boys and girls on sports teams. High school
cheerleading especially has become more difficult. The students must be in top physical shape. They must
be able to jump high, turn circles in the air and lift each other. Teachers say this is the result of the influence
of college cheerleaders. High school students watch college football and basketball games on TV. They
see how the cheerleaders throw each other into the air and perform difficult athletic movements. They want
to do the same thing. There is one big difference between the two groups. however. College cheerleaders
in America are young men and women. The men do most of the lifting. At most high schools only girls are
cheerleaders. It's very difficult for them to hold others on their shoulders and throw them into the air. There
are a number of ways high school cheerleaders are improving their skills. They are exercising and lifting
weights to increase their strength. And they are attending camps during the summer holidays to learn new
techniques. Cheerleaders test their skills by taking part in competitions against cheerleaders from other
schools. just like other athletes. Coaches at some high schools say this new kind of athletic cheer leading
has caused some problems .
They say girls who were soccer and basketball players are now competing for places on a cheer
leading team. As more girls attempt to become cheerleaders, sports teams suffer from a lack of good
players.
1.Whatcheerleaders should do is to lead the crowd ________
A. to take part in competitions
B. to cheer for their favorite teams
C. to be quick and strong
D. to be good high jumpers
2.Which of the following sente
nces is NOT true about cheerleaders?
A. They should be quick and strong.
B. They are expected to be dancers and singers.
C. They must be in top physical shape.
D. They must be able to jump high.
3. According to the last paragraph we can know, that __________
A. girls like to become leaders
B. it is easy for girls to be cheerleaders .
C. sports teams have no good players
D. more and more girls try to be cheerleaders
4. What is the main idea of this passage?
A.Cheerleaders are part of athletic competitions.
B . Why cheerleaders are so important.
C. What makes good cheerleaders and how they work.
D. Differences between college and high school cheerleaders .