巷道标定要素：（），（），开切点。
参考答案：中线；腰线
流浸膏剂系指药材用适宜的溶剂提取，蒸去部分溶剂，调整浓度至每1ml相当于原有药材多少克标准的液体制剂 ()
A．1
B．2
C．3
D．5
E．4
I was close to being killed the other day. A car passed me at I thought was a dangerous speed. [ ]
A. as
B. what
C. which
D. that
