暗袋
参考答案:
一咱密不透光的双层黑袋,有两个袖口,手可以伸进去装卸底片。
胆囊三角(Calot三角)的构成是()
A.胆囊管、肝总管和肝门构成的三角区
B.胆总管、肝总管和胰管构成的三角区
C.胆囊管、肝总管和肝下缘构成的三角区
D.胆总管、肝门和十二指肠 * * 处构成的三角区
E.胆囊、肝脏和胰腺构成的三角区
---- I stayed awake _______ 12 o’clock to wait for my husband to come back last night.
------ Then you _____have had a good sleep, did you?
A.until; mustn’t
B.till; can’t
C.before; should
D.when; would