Someone says, “Time is money.” But I think time is _____important than money.
A:much
B:less
C:much least
D:even more
若多项式3x2-2x+1x+m中不含x2项
(1)求m的值是多少?
(2)求代数式:2m3-2mm-122+12m的值.
下列物质中,属于氧化物的是()
量一量,操场跑道最内圈弯道半径,计算出最内圈跑道总长度。