检查肾动脉首选的方法是
A.肾图
B.彩色多普勒血流显像
C.CT
D.MRI
E.肾动脉造影
参考答案:B
When I was a child, my teacher told me that the earth ______round the sun.
A.to go
B.goes
C.has gone
D.going
悲观准则