一种由甲醇为原料的新型手机电池,其容量为锂电池的10倍,可连续使用一个月才充一次电,其电池反应原理为:2CH3OH + 3X + 4NaOH =2Na2CO3 + 6H2O 其中X的化学式为( )
青海湖参与的水循环类型是( )
- There are dark clouds, and the wind is blowing strongly.
- It ______ that a typhoon is coming.