治疗腹痛，宜首选（） A.章门、中脘、脾俞 B.三阴交、中脘、天枢 C.足三里、中脘

如图所示，斜面固定在水平地面上，先让物体A沿斜面下滑，恰能匀速。后给A一个沿斜面向下的力F，让其加速下滑。设前后两次A与斜面间的摩擦力分别为F_f1、F_f2，地面对斜面的支持力分别为F_N1、F_N2，则

A.F_f1=F_f2，F_N1=F_N2

B.F_f1=F_f2，F_N1>F_N2

C.F_f1＜F_f2，F_N1＜F_N2

D.F_f1>F_f2，F_N1>F_N2

Few people would question the value of taking part in sports for young people．With proper training，supervision，protective equipment and techniques，and an proper emphasis on winning，sports can develop a healthy body and spirit and a life-long interest in being active and fit .Without such measures，childhood sports can lead to injuries and even paralysis or death．

Even in the best conditions，no activity can be risk—free．But most serious hazards are preventable．Cyclists and football players can reduce their risks by wearing helmets；hockey players by wearing masks；basketball and tennis players by wearing eye guards；baseball players by wearing batting helmets．

Besides，risks to individual players can often be found，and thus prevented，through a properly performed medical exam before a child plays．For accidents that may not be preventable，having an emergency plan and first-aid equipment，and someone trained to use the equipment，can be lifesaving．

Still，each year，according to the American College of Sports Medicine，more than 775,000 children under 14 are treated in emergency rooms for sports injuries，nearly half of them preventable．An estimated 300,000 athletes experience exercise—related head illnesses each year，and almost all of them should have been avoided．

Further，from half to three—fourths of sports-related concussions（脑震荡） are never even diagnosed；the injured are often sent back in to play too soon and put at risk of another more serious brain—damaging concussion．To help reduce these risks, the National Center for Sports Safety, with the National Athletic Trainers’ Association, offers a three-hour online safety course for coaches for $28 at www.SportsSafety.org.

1．Which of the following is true according to the passage?

A．All the accidents can be prevented．

B．All the accidents cannot be prevented．

C．Lives can be saved so long as there is proper equipment．

D．Lives cannot be saved even if there is proper equipment．

2．What does the underlined word “hazards”(in paragraph 2)mean?

A．mistakes          B．diseases           C．dangers            D．situations

3．It is implied in the passage that        ．

A．prevention of injuries is not paid enough attention to

B．children under 14 are more easily hurt in sports

C．most head illnesses are related with exercise

D．none of the head illnesses should have happened

4．What can coaches mainly learn from the online safety course?

A．How to cure brain-damaging concussion．

B．How to diagnose brain-damaging concussion．

C．How to predict the possibility of brain damage．

D．How to deal with the injured properly．

A矿业公司通过私设的暗管向邻近的河流超标排污，被附近的养殖户及居民屡次投诉并受到环境保护部的点名批评。但由于A公司是当地的纳税大户和排污费缴纳大户，当地政府和环保局并未依法要求A公司采取整改措施。2010年6月的某一天，A公司邻近的河流散发出刺鼻的异味并出现大量死鱼现象。附近养殖户纷纷向当地环保局反映A公司私设暗管并偷排未经处理的污水的情况，要求环保部门责令A公司拆除暗管并治理污染。但环保局主管局长张某既未指示工作人员进行调查，也未采取任何其他措施。2010年7月初，当地连降大雨，A公司污水池中储存的大量污水在雨水的冲击下通过其私设的暗管溢流至邻近的河流，致使下游养殖户养殖的300多万公斤鱼死亡，直接经济损失超过2000万元。问：

A公司和当地环保局主管局长张某是否已构成犯罪如果构成，罪名分别是什么

在电源内部由负极指向正极，即从( )。

A．高电位指向高电位

B．低电位指向低电位

C．高电位指向低电位

D．低电位指向高电位

在现实中我们经常可以看到，受教育程序较高的员工往往能够获得较多的在职培训，其主要原因是受教育程度较高的员工( )。

A．流动率往往更低

B．接受培训内容的速度较快

C．在职培训只适用于受教育程度较高的员工

D．所接受的大多是一般培训