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【单选题】
关于域名（Domain name）与域名解析服务（Domain Name Service，DNS），下列说法正确的是:A.
域名（ Domain name ）是用于标识和定位 Internet 上一台计算机的具有层次结构的计算机命名方式。
B.
一个网站要提供网页浏览服务，必须注册域名，因为用户进行网页浏览只能使用域名。
C.
一台计算机只能有一个域名。
D.
使用域名必须注册，域名解析是由本地计算机完成的。
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A.
make a friend
B.
make friends
C.
make a friend with
D.
make friends with
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A.
consisted
B.
allowed
C.
approved
D.
informed
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A.
was , would tell
B.
were ,would tell
C.
am, will tell
D.
is , will tell
【单选题】If I were a teacher, I would allow my students to ____ by themselves. [ ]
A.
make a living
B.
make decisions
C.
make much noise
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