A:赤道低气压带
B:副热带高气压带
C:极地高气压带
D:副极地低气压带
—The Dragon Boat Festival is coming. I'm going to give a talk about it to the exchange students.
— Great! But don't forget to tell them _________.
下列省级行政区中,水能、地热能、太阳能都很丰富的是( )
如图所示量筒的分度值是 ____mL,小明家有一枚质量为2.1g的银币(ρ银=10.5g/cm3),可求出此银币的体积为 ____cm3,他想用此量筒测出该银币体积,从而鉴别是不是纯银的,请问他能否鉴别出该银币? ____(能/不能),理由是 ____.
若102x=25,则x=( )