A:go to the school on foot
B:walk school
C:walk to the school
D:go to school on foot
Check carrots,potatoes, onions and any other vegetables_____ and immediately use or throw away any which show signs of rotting.
用显微镜观察人血涂片,视野中可看到红细胞、白细胞及血小板(如图).下列有关三种血细胞的描述哪项不正确( )