问题

水带按直径分一般有。()
A:50mm,65mm,80mm,120mm
B:45mm,65mm,80mm,120mm
C:50mm,70mm,80mm,120mm
D:50mm,65mm,75mm,120mm
B:45mm,65mm,80mm,120mm
C:50mm,70mm,80mm,120mm
D:50mm,65mm,75mm,120mm
正确答案是: