体外冲击波碎石时不需要配合输尿管支架管的是（）.
A.孤立肾
B.定位显影差的结石
C.缓解症状
D.增加碎石效果
E.减轻梗阻
参考答案：D
Could you please tell me ______?[ ]
A. how could I get to the airport
B. how could I get to the airport
C. how can I get to the airport
D. how I can get to the airport
对肺癌出现杵状指的认识哪项是错误的（）
A.可出现在胸片征象前
B.非远处转移表现
C.肺癌切除后可以消失
D.肺癌复发又可出现
E.为手术治疗禁忌证
