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【单选题】
从OSI协议层次来看,负责对数据进行存储转发的网桥属于( )范畴。
A.
网络层
B.
数据链路层
C.
物理层
D.
运输层
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参考答案:
举一反三
【单选题】气蚀是下列哪种 输送设备特有的现象
A.
压缩机
B.
真空泵
C.
离心泵
D.
往复泵
【单选题】气蚀是下列( )输送设备特有的现象。
A.
压缩机
B.
真空泵
C.
离心泵法启动
D.
往复泵
E.
齿轮泵
【单选题】A murder would most likely occur ______.
A.
on a weekend night in summer
B.
on a weekend afternoon in summer
C.
on a weekend night in winter
D.
on a weekend afternoon in spring
【单选题】气蚀是下列( )输送设备特有的现象。
A.
压缩机
B.
真空泵
C.
离心泵
D.
往复泵
E.
齿轮泵
【单选题】A murder would most likely occur _____.
A.
on a weekend night in summer
B.
on a weekend afternoon in summer
C.
on a weekend night in winter
D.
on a weekday afternoon in spring
【单选题】为管理者的工作提供了结构保证,它是进行人员管理、指挥、协调和控制的前提( )。
A.
控制
B.
领导
C.
计划
D.
组织
【单选题】有界函数与无穷小的乘积是()
A.
无穷小
B.
无穷大
C.
0
D.
1
【单选题】'What did you do _____?'    'I visited my uncle.' [     ]
A.
over the weekend
B.
for the weekend
C.
on weekend
D.
at the weekend
【单选题】---__________a new film in Star Cinema this weekend? ---Yes,There_____often new films at the weekend.
A.
Is there going to have;will be
B.
Will there have;are
C.
Will there be; will be
D.
Is there going to be;are
【单选题】--- How was your weekend ?   --- ___________________
A.
I’d like to visit my uncle for this weekend.
B.
It was good.
C.
Did you have a nice weekend ?
D.
I used to spend my weekend in the country
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