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【判断题】
若函数【图片】,且【图片】在【图片】上的函数值均为有理数,则【图片】必恒为常数.A.
正确
B.
错误
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举一反三
【单选题】 The students are going to part in social practice ( 社会实践 ) at the end of this of this month.
A.
work
B.
take
C.
tick
D.
took
【单选题】 All the students are talking and laughing in the classroom and it’s _____.
A.
noisy
B.
lonely
C.
quiet
D.
strict
【单选题】 The students in the classroom ______ not to make so much noise.
A.
need
B.
ought
C.
must
D.
dare
【单选题】 The students became so single-minded that they soon surpassed their teachers in knowledge about computing and got into a lot of trouble because of their obsession.
A.
学生如此专心致志以至于...
B.
学生变得如此头脑简单导致...
【简答题】简述现代智能仪表划分的类别。
【单选题】 The students seldom have a rest after lunch,________?
A.
do they
B.
have they
C.
don’t they
D.
haven’t they
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