Issue：Corporations and other businesses should elimiate many ranks and salary grades according to employees' experience and expertise. A ‘flat' structure 对于员工合作有好处
Argument:A recent review revealed that it took more time for volunteer ambulance service in West Cambria to respose to accidents than commercial ambulance service in East Cambria. In order to provide better patient care for the accident victims and gain a rise in revenue for the commercial ambulance service. We should disband the volunteer ambulance and hire a commercial ambulance service.
Math:
1. 0.5/(1/6)=1/x,x=?
2. 飞机来回飞400mile，去程顺风350m/h,回程逆风250m/h,问平均时速
3. 9个人选4个人组成委员会，不排先后，问选法有多少
4. 一等比数列，1/2,1/4,1/8,1/16,...，问第十项处于什么位置
5. J,K公司gross profit为25，000那题
6. 直角三角形，两直角边和为12，斜边长为10那题
7. 一个cube的表面积是21，问边长
