影响中观劳动力供给的因素中最重要的因素是()
A.企业经济实力
B.工资水平的高低
C.人的就业偏好
D.劳动要素流动性
参考答案：D
It is reported that the police will soon ________ the case of the two missing children.[ ]
A. look upon
B. look after
C. look into
D. look out
白虎汤与竹叶石膏汤的共有药物是( )
A．人参、炙甘草B．竹叶、半夏C．麦冬、半夏D．石膏、粳米
