【名词&注释】
行气活血(promoting circulation of qi and blood)、激光束(laser beam)、消肿止痛(detumescence analgesic)
[单选题]He-Ne激光束能部分到达生物组织多少毫米深处()
A. 50~100mm B. 100~150mm C. 10~30mm D. 10~100mm E. 10~15mm