碳酸饮料所使用的CO2纯度应大于99%,不应含有CO、SO2、NH3等杂质。( )
参考答案:对
— What do you think of the film?
— It's so____that I'm deeply____. [ ]
A. moved;moved
B. moving;moving
C. moving;moved
D. moved;moving
磁场矢量垂直于地面的电磁波叫垂直极化波。