机房内长期工作温度应在()。
A.0℃~40℃
B.50℃~60℃
C.70℃~80℃
D.-30℃~10℃
参考答案:A
We have two history classes a week. One is on Monday, _____ is on Thursday. [ ]
A. others
B. other
C. the others
D. the other
创建交换文件的命令是()。
A.mkfs
B.dd
C.touch
D.vi