劳动力市场均衡包含两方面的含义：变量均等和（）
A．选择最优
B．行为最优
C．效用最大
D．产量最高
参考答案：B
She got so angry that she ran after them.She was soon________，but she continued to run.
A．out of sight
B．out of breath
C．in sight
D．in breath
既能清热凉血，又能定惊的药物是（）
A.鹿茸
B.水牛角
C.生地黄
D.小蓟
E.防风
