按结构形式园路可分为()
A、整体路面、块料路面、碎石路面和简易路面
B、路堤式、路堑式和特殊式
C、主路、次路、小路和小径
D、路面、路基和道牙
参考答案:B
下列哪项不属于增生性炎:
A.宫颈息肉
B.结核
C.伤寒
D.炎性假瘤
E.细菌性痢疾
A backlash below a lock is defined as a().
A.current setting your vessel on the wall
B.current setting into the lock chamber
C.an eddy working along the lower guide wall
D.current setting counterclockwise