题目:
超声波治疗时采用连续波固定法时,其超声强度最大不超过()
A.0.1~0.2w/cm
B.0.3~0.4w/cm
C.0.5~0.8w/cm
D.0.4~0.5w/cm
E.0.8~1.0w/cm
答案:
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possible version; I’m a senior student. I like English very much. Besides attending English lessons at school, I often go to the English corner in the park nears my...