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【多选题】
下列关于域名表述正确的是( )。A.
域名是企业在网络上的地址体现
B.
域名相当于网上的一种企业商标
C.
网上可以存在两个相同的域名
D.
域名具有全球性
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举一反三
【简答题】A teacher has a wide (vary) ______of duties.
【简答题】What if a child has poor chemistry with the teacher?
【单选题】My English teacher ______ my test.
A.
has not yet graded
B.
has not yet been graded
C.
is not yet to be graded
D.
is not yet graded
【单选题】A teacher's work is different from an actor's because the teacher has to ______.
A.
learn everything by heart
B.
know how to control his voice
C.
deal with unexpected situations
D.
use more facial expressions
【单选题】Only when __________________ permission _______________ allowed to enter the lab.
A.
a teacher has given; are the students
B.
has a teacher given; are the students.
C.
has a teacher given; the students are
D.
a teacher has given; the students are
【单选题】Every classroom has a teacher's desk ______ the classroom. It's for the teacher. [ ]
A.
in front of
B.
behind
C.
beside
D.
in the front of
【简答题】当电动机低于额定转速时应采用恒转速方式调速。( )
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