关于肾周异常CT表现,下列哪些征象常见于炎症、外伤与肿瘤()
A.肾周脂肪密度增高
B.肾周局限性软组织密度灶
C.肾筋膜增厚
D.肾周积液
E.以上全是
参考答案:A, C, D
When Daniel is in a bad mood, he likes to wear orange to _________.
A.wake himself up
B.cheer himself up
C.give himself up
D.cheer up himself
高频保护停用时,后备保护()。