下列各式计算正确的是( )
A:m3+m3=m6
B:m3⋅m3=2m3
C:20160÷m−1=m
D:(−m2)⋅(−m)2÷m=m3
Do you need more people_______ you_______ the bird count?
如图天气符号,表示的天气状况是( )