高锰钢整铸辙叉，辙叉心、辙叉翼轨面剥落掉块长度超过()，且深度超过 6mm 为重伤。
A.20mm
B.30mm
C.40mm
D.50mm
参考答案：B
温经汤证的病机是( )
A．阴虚内热
B．冲任虚寒夹瘀血
C．气不摄血
D．阳虚寒凝
The prices of the things in this shop are much _____. [ ]
A. cheap
B. cheaper
C. high
D. higher
