[单选题]

我国托盘国家标准有（　　）两种规格。

A.1100mmB800mm和1000mmB800mm

B.1200mmB1000mm和1100mmB1100mm

C.1000mmB1000mm和1100mmB1100mm

D.1219mmB1016mm和1140mmB1140mm

参考答案与解析：