我国铁路标准轨距规定为（）。
参考答案：1435mm
With reference to the Companies Law, explain the rules relating to the following:
(a) registering charges over the assets of a company; (6 marks)
舱壁按结构可分为：（）
①、平面舱壁；②、防火舱壁；③、对称槽形舱壁
A.①、②
B.②、③
C.①、②、③
D.①、③
