髂内动脉的壁支动脉主要供应
A．膀胱血液
B．直肠血液
C．子宫血液
D．臀部肌肉血液
E．盆腔内各脏器血液
参考答案：D
Our town________poor in the past, but great changes________in the town in the past three years.[ ]
A. was; had taken place
B. was; have taken place
C. has been; had taken place
D. has been; have taken place
在办理进路时，为什么长时间按压始端按钮会造成光带不亮而选排不出进路？
