下列说法中,不正确的是( )
A:5是25的算术平方根
B:m2n与mn2是同类项
C:多项式﹣3a3b+7ab+1的次数是4
D:﹣8的立方根为﹣2
--Smoking is bad for your health.
--You're right.I have decided to .
100以内的偶数和是____ .
He has something wrong with his ________. He can't see anything.