-What's wrong __________ you?
-I have pains in the eyes.[ ]
A. for
B. with
C. on
D. at
答案:B
下面哪条命令可以显示交换内存。()
A、showmem
B、freemem
C、swAp
D、free
切粒机磨刀操作程序有哪些?