单项选择题
A.450-570W B.470-570W C.470-550W D.400-570W
A.30%；30% B.32%；32% C.35%；35% D.37%；37%
A.80-90℃ B.85-95℃ C.90-95℃ D.80-95℃
A.100h B.110h C.120h D.150h
微信扫一扫,加关注免费搜题
