低钾血症临床症状错误的是() ["A．心电图T波低宽，出现U波","B．反常性酸尿","C．神经肌肉兴奋性降低","D．心肌兴奋性降低肾脏浓缩功能降低","E．心肌收缩功能增强"]
下鼻甲位于鼻腔的() ["A．内侧壁","B．外侧壁","C．底壁","D．顶壁","E．外壁"]
有关鼻窦的正确说法是() ["A．可从鼻腔受到感染","B．开口于中和下鼻道","C．引流主要靠重力作用","D．出生时全部发育","E．出生时未发育"]
有关鼻窦的说法正确的是() ["A．两侧对称大小一致","B．初生儿所有鼻窦均未发育","C．粘膜菲薄脆弱仅在窦口附近较厚","D．粘膜内有丰富的血管和腺体","E．后组筛窦在中鼻道筛泡处"]
I、Ⅱ级星形细胞瘤的CT表现有哪些?
新生儿颅内出血的CT征象?
