PTCD是指（）
A.经皮肝穿刺胆管造影
B.经皮肝穿刺胰管造影
C.经皮肝穿刺胆管引流
D.内镜逆行胆管造影
E.经内镜鼻胆管引流术
参考答案：C
Hawking became world-famous in _______.
A．his thirties in the 1970’s
B．the thirties in his 1970
C．his 30s in 1970’s
D．the thirties during the 1970
跆拳道套路动作名称没有（）。
A.太极
B.八卦
C.高丽
