肾上腺外的嗜铬细胞瘤多发生在同水平的下腔静脉旁。
参考答案：错
For us Senior Three students, believing that our hard work will______can build up our confidence. [ ]
A. take off
B. pay off
C. keep off
D. get off
口腔境界的叙述不正确的是( )
A．前壁为唇
B．两侧为牙列
C．下界为舌下区
D．上界为腭
E．后界为咽门
