男,13岁,运动后膝痛,请结合影像图像,选择最可能的诊断()
A.正常影像
B.动脉瘤样骨囊肿
C.骨软骨瘤
D.成骨细胞瘤
E.骨样骨瘤
参考答案:C
火力发电厂生产过程中主要污染源为大气污染源,并且燃煤电厂烟气具有排放量大、气体污染物浓度较低等特点。一般燃煤电厂采用除尘器主要是()。
He hasn't slept at all for 3 days. he is tired out. [ ]
A. There is no point
B. There is no need
C. It is no wonder
D. It is no way