皮皮学，免费搜题
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搜题
【单选题】
包过滤防火墙工作在A.
物理层
B.
数据链路层
C.
网络层
D.
会话层
拍照语音搜题，微信中搜索"皮皮学"使用
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举一反三
【单选题】______ we are having these days!
A.
What a lovely weather
B.
What lovely weathers
C.
What lovely weather
D.
What lovely a weather
【多选题】下列有关消防管道工程常用连接方式的说法，正确的有（ ）。
A.
采用螺纹连接时，热浸镀锌钢管的管件宜采用锻制承插焊和螺纹管件
B.
宜采用密封胶带作为螺纹接口的密封，密封带应在外螺纹上施加
C.
法兰连接是管道工程中最重要且应用最广泛的连接方式
D.
法兰连接按法兰与管子的固定方式分为螺纹法兰、焊接法兰、松套法兰等
E.
消防上多用到铸铁管的承插连接，铸铁管的承插连接方式分为机械式接口和非机械式接口
【简答题】简述物流企业绩效评价的基本原则
【单选题】—_____ class are you having?—We are having an English class.
A.
Which
B.
What
C.
When
【单选题】______terrible weather we've been having these days!
A.
What
B.
What a
C.
How
D.
How a
【单选题】— Where shall we go this weekend? — ________ .
A.
What is having a drive to the country
B.
How is to take a drive to the country
C.
What about having a drive to the country
D.
We’re having a drive to the county
【单选题】----“What a terrible rain we are having!” ----“Yes. We are asked to pay more attention to the information about the rain ______ flood.”
A.
as well as
B.
so long as
C.
because of
D.
in case of
【单选题】_______bad weather we are having !We've never had_______ rainy days.
A.
What a；such
B.
How；so
C.
What；such
D.
What；so
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