石瘿的首选治疗方案是
A．疏肝解郁
B．清热解毒
C．疏风清热
D．切开引流
E．早期手术
参考答案：E
临时使用土地的期限，最多不得超过（）年。
A.1
B.2
C.3
D.4
His report was so exciting that it was interrupted by applause（掌声）.
A．constantly
B．constant
C．seldom
D．never
