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【单选题】
水泥比表面积试验(勃氏法自动)的试验步骤主要( )。
A.
水泥密度测定-漏气检查-试料层标定-K值标定-S值测定
B.
漏气检查-水泥密度测定-试料层标定-K值标定-S值测定
C.
漏气检查-水泥密度测定-K值标定-试料层标定-S值测定
D.
试料层标定-漏气检查-水泥密度测定-K值标定-S值测定
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参考答案：
举一反三
【单选题】He helped me my lost book. [     ]
A.
found
B.
find
C.
finding
查看完整题目与答案
【单选题】游客提出住更高标准的房间时,导游员的正确做法是( )。
A.
告知游客超标，不能满足
B.
如有房间，可予以满足，但游客要交付退房损失费和房费差价
C.
婉言拒绝
D.
请全陪报告组团社，由组团社决定
查看完整题目与答案
【单选题】In the preface ______the book, the writer thanked all the people who had helped him.
A.
of
B.
for
C.
in
D.
to
查看完整题目与答案
【单选题】吸氧时,流量表显示的流量为3L/min,病人此时吸入的氧浓度是
A.
37%
B.
33%
C.
29%
D.
25%
E.
41%
查看完整题目与答案
【单选题】吸氧时流量为3L/min,其氧浓度为( )
A.
29%
B.
33%
C.
37%
D.
41%
E.
45%
查看完整题目与答案
【单选题】This is _______ important book. It helped me a lot in ________ old days.
A.
a; an
B.
an; the
C.
the; an
D.
/; the
查看完整题目与答案
【单选题】—What's this in English? —_____. [     ]
A.
It's book.
B.
This's a book.
C.
It's a book.
查看完整题目与答案
【单选题】氧流量为3L/min时,吸入氧浓度是
A.
22%
B.
29%
C.
33%
D.
41%
查看完整题目与答案
【单选题】The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.
A.
which
B.
when
C.
as
D.
where
查看完整题目与答案
【单选题】吸氧流量为3L/min,其氧浓度为( )
A.
29%
B.
33%
C.
37%
D.
41%
E.
45%
查看完整题目与答案
相关题目：
【单选题】He helped me my lost book. [     ]
A.
found
B.
find
C.
finding
查看完整题目与答案
【单选题】游客提出住更高标准的房间时,导游员的正确做法是( )。
A.
告知游客超标，不能满足
B.
如有房间，可予以满足，但游客要交付退房损失费和房费差价
C.
婉言拒绝
D.
请全陪报告组团社，由组团社决定
查看完整题目与答案
【单选题】In the preface ______the book, the writer thanked all the people who had helped him.
A.
of
B.
for
C.
in
D.
to
查看完整题目与答案
【单选题】吸氧时,流量表显示的流量为3L/min,病人此时吸入的氧浓度是
A.
37%
B.
33%
C.
29%
D.
25%
E.
41%
查看完整题目与答案
【单选题】吸氧时流量为3L/min,其氧浓度为( )
A.
29%
B.
33%
C.
37%
D.
41%
E.
45%
查看完整题目与答案
【单选题】This is _______ important book. It helped me a lot in ________ old days.
A.
a; an
B.
an; the
C.
the; an
D.
/; the
查看完整题目与答案
【单选题】—What's this in English? —_____. [     ]
A.
It's book.
B.
This's a book.
C.
It's a book.
查看完整题目与答案
【单选题】氧流量为3L/min时,吸入氧浓度是
A.
22%
B.
29%
C.
33%
D.
41%
查看完整题目与答案
【单选题】The book has helped me greatly in my daily communication, especially at work ________ a good impression is a must.
A.
which
B.
when
C.
as
D.
where
查看完整题目与答案
【单选题】吸氧流量为3L/min,其氧浓度为( )
A.
29%
B.
33%
C.
37%
D.
41%
E.
45%
查看完整题目与答案
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