题目

阅读短文，回答问题What would happentoday, if there was an accident at your workplace? Would employees know what todo? Would the injured person get the best possible care?When an accidenthappens, a first aid programme that meets the requirements of the law and is madeto the type and size of the workplace can really make the difference betweenlife and death, or between recovery and lasting disablement (伤残).Employers shouldmake sure that all employees know where emergency information is posted at theworkplace. The emergency notice should show the phone numbers of the closestambulance已知函数f(x)是定义在R上的不恒为零的偶函数，且对任意实数x都有xf(x+1)=(1+x)f(x)，则f()的值是 A．0      B．      C．1      D．