A:contains , include
B:contains , including
C:includes, contai
D:includes, containing
如图中被测物体的长度是 ____ cm,该刻度尺的分度值是____ cm.
转基因超级鼠的研制成功,说明了( )
读我国某区域轮廓图,下列说法正确的是( )
设 a,b,c 为不全相等的正数,且 abc=1 ,求证:1a+1b+1c>a+b+c .