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【单选题】
叶轮式压气机的特点是体积（），供气量（）。A.
小/小
B.
小／大
C.
大／小
D.
大／大
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举一反三
【单选题】There isn’t a teacher in the classroom and all the students are talking. So the classroom is ________.
A.
quiet
B.
strict
C.
noisy
【单选题】There is a blackboard _______ the classroom and another one _______ the classroom.of [ ]
A.
in the front of, at the back of
B.
in the front of, at back of
C.
in front of, at the back of
D.
in front of, at back
【单选题】When the teacher came into the classroom, she was not ________ because the classroom was not as ________ as ________. [ ]
A.
pleased; clean; usually
B.
angry; cleaning; usual
C.
pleased; clean; usual
D.
happy; clean; usually
【单选题】According to the speaker Liu Yuhan, which one does she prefer, the traditional classroom or the online classroom?
A.
traditional classroom
B.
online classroom
【单选题】_____the bedroom need to be cleaned. A. Either the classroom or B. Neither the classroom nor C. Both the classroom and D. Both the classroom and
A.
Either the classroom or
B.
Neither the classroom nor
C.
Both the classroom and
D.
Not only classroom but also
【简答题】The traditional classroom and the IITV classroom are______.
【单选题】听力原文： We hear it a lot in the news these days: 'Recycle newspapers and save a tree. Collect bottles and calls so they can be reused in the manufacturing of new products.' Protecting our delicate envir...
A.
Important Keys to Recycling Paper.
B.
Technological Advances Improve Recycling.
C.
Steps to Improve Recycling.
D.
A Greater Demand for Improving Recycling.
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