把一个64cm×40cm×24cm的长方体切成若干个完全相同的小正方体,并使这些小正方体的表面积总和最小,则小正方体的表面积总和为( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
免费的网站请分享给朋友吧