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【简答题】
储液干燥器的作用包括 、 和 。
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反馈参考答案：
举一反三
【简答题】影响超声波测距的准确性有哪些因素?如何提高超声波测距仪的准确性?
【单选题】Such exchange students________have a good knowledge of English will not worry about their daily life in America.
A.
who
B.
as
C.
that
D.
/
【单选题】This is a _____ book that you may _____ in daily English study. [ ]
A.
referring; refer to
B.
referring; refer
C.
reference; refer to
D.
reference; refer
【简答题】碳的质量分数小于____的钢为低碳钢,碳的质量分数为____、的钢为中碳钢,碳的质量分数大于____的钢为高碳钢。
【简答题】When did the first daily English newspaper come out? It came out in__________.
【简答题】Match daily English
【单选题】It's my daily duty to have the English newspapers ________ to the senior students. [ ]
A.
printed
B.
published
C.
delieved
D.
advertised
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