精刨齿轮齿面时,用()成形精刨刀。
A、单齿面
B、双齿面
C、圆头
参考答案:A
I hurried back home only ________ that I had left my key at my office.
A.to find
B.finding
C.having found
D.found
李某某,68岁。腰痛,腰膝酸软无力,喜按喜揉,遇劳则甚,手足不温,少气乏力,舌淡,脉沉细。
本病例为何种腰痛()
A.血瘀腰痛
B.风湿腰痛
C.肾虚腰痛
D.瘀血腰痛
E.湿热腰痛