His first lecture is of great use to our

--How dangerous it was !

---Yes, but for the passer-by’s quick action,the girl _____ .

A．had been drowned

B．might be drowned

C．would have been drowned

D．must have been drowned

肿瘤间质血管成分是怎样形成?

给出下列的不完整的类代码，则下列的哪个语句可以加到横线处 class Person {String name，department；int age；public Person( String n ){ name = n；}public Person( String n，int a ) { name = n；age = a；}public Person( String n，String d，int a ) { _____________ department = d；} }

A．Global

B．Private

C．Static

D．Public

现一无症状的胆囊结石胆囊炎病人。B超示胆囊壁厚0.4cm，结石周围未见胆囊腔，胆囊肿胀，内回声不均匀，胆囊大于13cm×4cm，结石大于2.0cm，胆总管0.9cm。下一步选择应该是（）。

A.内镜胆囊切除

B.开腹手术胆囊切除

C.腹腔镜胆囊切除，切除困难时中转开腹

D.做MRCP或胆道造影检查

E.保守治疗

CO中毒时，常最先受损的脏器是

A．脑
B．肝
C．肺
D．肾
E．胃