有关中心静脉的测压途径,临床上常用的不包括()
A.右颈内静脉
B.锁骨下静脉
C.贵要静脉
D.颈外静脉
E.股静脉
参考答案:C
They ________ with each other for two years before they got married.[ ]
A.had fallen in love
B.got in love
C.had been in love
D.fell in love
病愈后有持久免疫力的病毒性肝炎是()
A.甲型肝炎
B.乙型肝炎
C.丙型肝炎
D.丁型肝炎
E.戊型肝炎