哪个命令可以用于配置Red Hat Linux 7 启动时自动启动 httpd 服务？（）
A. systemctl
B. auto
C. useradd
D. startx
查看答案
HTTP协议的英文全称是Hypertext Transfer Protocol 。
A. 对
B. 错
HTTP请求的的默认端口8080
A. 对
B. 错
What is the purpose of the author by describing Einstein with the sentence "his hair was a mess; he had forgotten to comb it again"?
A. To tell us Einstein was a bushy-haired superthinker.
B. To show Einstein was not a nneat person.
C. To indicate that Einstein was not a space alien.
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