The _____ day of a week is Thursday. [ ]
A. first
B. fifth
C. seventh
答案：B
迷路瘘管是指（）。
A.局限性迷路炎
B.浆液性迷路炎
C.化脓性迷路炎
D.坏死性迷路炎
E.隐匿性迷路炎
天山
