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【单选题】
As far as many parents are concerned, what a child should do，________， is to do well in his studies. [ ]A.
in all
B.
above all
C.
after all
D.
at all
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【单选题】my mobile phone can be used ____to music.
A.
to listen
B.
for listen
C.
listen
D.
to listening
【简答题】A.The phone can be more portable. B.The information is more specific. C.The language is r. D.The service is cheaper.
【单选题】_______ phone can be used to contact people anywhere and anytime.
A.
Landline
B.
Extension
C.
Cell
【简答题】学生与教师管理教学模型如下: 有若干学生包括:学号、姓名、性别、年龄。 有若干教师包括:编号、姓名、性别、年龄、职称。 开设若干课程包括:课程号、课程名、课时、学分。 一门课程只安排一名教师任教,一名教师可任多门课程。教师任课包括任课时间和使用教材。一门课程有多名学生选修,每名学生可选修多门课。学生选课包括所选课程和考核成绩。请设计系统的概念结构模型(E-R图),(忽略实体的属性,但标绘出联系的属...
【单选题】Which of the Mowing is true of an allophone?
A.
A phone can be the allophone of all English vowel phonemes.
B.
There are no restrictions on the distribution of an allophone.
C.
There is no possibility of an allophone becoming a phoneme.
D.
An allophone changes the meaning of the word.
【判断题】An Android-based mobile phone can be a successful cloud client, but an iPhone can not.
A.
正确
B.
错误
【单选题】Photos on your cell phone can be a ( ) to use when you try to communicate some points.
A.
statistics
B.
logic
C.
visual aid
D.
comment
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