单项选择题
A.1:116.5 B.1:118.9 C.1:118.4 D.1:119.4
A.0°C~60°C B.-20°C~30°C C.-20°C~40°C D.-30°C~40°C
A.10m/sB.11m/sC.12m/sD.13m/s