下列不属于非血管内介入治疗技术的是()
A.取石术
B.经皮穿刺胆道引流术
C.球囊血管成形术
D.肝肾囊肿硬化治疗
E.经皮肾穿引流术及输尿管成形术
参考答案:C
I to my cousin’s birthday party last night, but I was not available.
A.went
B.had gone
C.would go
D.would have gone
消除应力处理的目的是防止()。
A.晶间腐蚀
B.化学腐蚀
C.点腐蚀
D.应力腐蚀