有一个近似于圆锥形的小麦堆,它的底面积是6.28m2,体积是12.56m3.它的高是多少?
12.56÷13÷6.28
=12.56×3÷6.28
=6(米),
答:它的高是6米.
读一读,做一做。
Hi, I'm Liu Jie. I' m going to have a busy weekend! On Saturday, I'm going to the bookstore by subway.
I'm going to buy a new CD and some story-books. Then, I'm going to go home and read the new books. On
Sunday, I'm going to the market with my mother. In the evening, I'm going to visit my aunt. We're going to
watch TV together.
On Saturday: ___________________________________________________________________
On Sunday: ___________________________________________________________________
发酵法的最佳温度为
A.30—37℃
B.25—30℃
C.37—40℃
D.40—45℃