Bezold脓肿是指:()
A.耳后骨膜下脓肿
B.耳源性颈侧脓肿
C.耳源性颈深部脓肿
D.耳源性脑脓肿
E.耳源性小脑脓肿
参考答案:B
What's under the desk? ______. [ ]
A. It's a football
B. I can see a set of keys
C. They are red box
D. There's a cat
可修复废品是指经过修理可以使用,而且所花费的修复费用在经济上合算的废品。