【简答题】
A、Z41H-15CDN80 B、J41H-15CDN75 C、J4T-15DN75 D、Z44T-10DN80
A、Z41H-15CDN80 B、J41H-15CDN75 C、J4T-15DN75 D、Z44T-10DN80
A、DN65或DN52 B、DN50或DN65 C、DN50或DN60 D、DN62或DN65