功能制护理的优点包括()。
A.工作方式机动灵活
B.分工明确,节省人力
C.可以掌握病人的全面情况
D.增加与病人的交流机会
E.增加护士责任感
参考答案:B
已知x+y=7,xy=12,求x2y+xy2的值.
One common way to compute estimated at completion (EAC) is to take the project budgeted-at-completion and ______ .
A) divide it by the schedule performance indexB) multiply it by the schedule performance indexC) multiply it by the cost performance indexD) divide it by the cost performance index