下列哪一项是肿瘤（） ["错构瘤","动脉瘤","室壁瘤","创伤性神经瘤","骨软骨瘤"]
鼻咽癌高分化鳞癌约占总数的（）。 ["小于10%","30%～45%","50%～65%","70%～80%","85%～90%"]
对萎陷肺应用低PEEP，可（） ["增加非通气侧肺的功能残气量","增加非通气侧肺的死腔量","增加非通气侧的潮气量","增加非通气侧的时间肺活量","增加非通气侧的肺活量"]
皮下一肿块，边界清楚，有包膜，质硬，灰白色，切面性质均匀一致，无继发改变，可见纤细的编织状条纹，该肿物可能诊断为（） ["纤维瘤","纤维肉瘤","平滑肌瘤","平滑肌肉瘤","脂肪瘤"]
先天性肌性斜颈是指（） ["A.一侧胸锁乳突肌挛缩","B.一侧斜方肌纤维断裂","C.颈部和头面部向健侧偏斜","D.颈部偏向健侧，头面部偏向患侧","E.由于颈椎侧弯引起"]
中腹壁反射弧中枢在胸髓哪个节段？
