— Whose are those books?
— They are _____. [ ]
A. our
B. mine
C. your
D. their
答案:B
外伤性鼻窦积液最好发于下列哪项()
A.上颌窦
B.额窦
C.蝶窦
D.筛窦前组
E.筛窦后组
简述运动处方的制定与实施流程.