肾囊肿最常用、最好的治疗方法是
A．囊肿摘除
B．切开排液
C．在超声引导下无水乙醇硬化治疗
D．肾脏摘除
E．肾静脉结扎
参考答案：C
The _____ now is that we have many _____ to ask.
A．problem; questions
B．problems; question
C．question; problems
D．questions; problem
同配生殖
