紫河车能温肾补精，还能
A．补中缓急B．健脾化湿C．养血敛阴D．养肝明目E．益气养血
参考答案：E
He________to apply for a job in the company, but in vain. [ ]
A. managed
B. succeeded
C. attempted
D. thought
一侧用种植体作基牙的固定桥称为
A．双端固定桥B．种植体固定桥C．应力中断式固定桥D．复合固定桥E．粘结固定桥
