—Peter, please ask Tom to my office as soon as he _______ back tomorrow.
—OK, I will.
A:come
B:coming
C:will come
D:comes
左图为世界1月平均气温10~22 ℃范围示意图,右图为某地年内各月气温变化曲线与降水量柱状图。读图,完成下列各题。
29×8≈____
32×46≈____
一个方程组的增广矩阵为A=2153-24,则该方程组的解为____ .