单项选择题 Among the following statement about jx-300xp DCS network system,  (         ) is wrong. A、SBUS is the lowest level network B、SUB-S2 is located between the I/O cages governed by the control station C、Process control network Scnet II is a dual high speed redundant industrial network D、SBUS-S1 network connection master business card printing and data forwarding card

单项选择题 男孩，10个月，生后发现腰部中线处肿物．约8cm×6cm×5cm，局部伴毛发增生及色素沉着，并伴有轻度尿、便失禁最可能的诊断是A.腰部脊膜膨出B.腰部脊髓外翻C.腰部脂肪瘤D.腰部脊膜膨出合并神经性膀胱E.腰部脊髓脊膜膨出

单项选择题 人民战争的武装力量的体制是( )