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因特网以()协议为基础进行数据通信。( 填英文缩写 )
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【单选题】有包装或放置在一般容器内的物品,其活性指数为( )。
A.
0
B.
1
C.
2
D.
3
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【单选题】气固催化反应的内扩散模数 ,其中L为特征长度,若颗粒为球形则L=( )。
A.
厚度/2
B.
R
C.
R/2
D.
R/3
查看完整题目与答案
【单选题】All I suggest is that we ________electric wires out of the reach of children.
A.
keep
B.
to keep
C.
kept
D.
be kept
查看完整题目与答案
【单选题】What is not mentioned as a proper way to keep the electric wires?
A.
They should be kept clean.
B.
They should be kept dry.
C.
They should be in sufficient length.
D.
They should not be overloaded.
查看完整题目与答案
【简答题】In an electric lamp there should not be any oxygen in which the wires may burn away.
查看完整题目与答案
【单选题】Electric Wires should have each feature of the following except ____.
A.
flame retardant
B.
moisture resistant
C.
oil resistant
D.
low conductivity
查看完整题目与答案
【单选题】气固催化反应的内扩散模数 ，其中L为特征长度，若颗粒为圆柱形则L=（）。
A.
厚度/2
B.
R
C.
R/2
D.
R/3
查看完整题目与答案
【单选题】Electric wires in your house are ___________ with poor conductors like rubber or silk.
A.
segregated
B.
insulated
C.
isolated
D.
served
查看完整题目与答案
【单选题】The electric wires in a house____with some kind of insulation.
A.
are covered
B.
were covered
C.
is covered
D.
will been covered
查看完整题目与答案
【判断题】Electricity comes into our houses by flowing through electric wires and cables in the sky.
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】有包装或放置在一般容器内的物品,其活性指数为( )。
A.
0
B.
1
C.
2
D.
3
查看完整题目与答案
【单选题】气固催化反应的内扩散模数 ,其中L为特征长度,若颗粒为球形则L=( )。
A.
厚度/2
B.
R
C.
R/2
D.
R/3
查看完整题目与答案
【单选题】All I suggest is that we ________electric wires out of the reach of children.
A.
keep
B.
to keep
C.
kept
D.
be kept
查看完整题目与答案
【单选题】What is not mentioned as a proper way to keep the electric wires?
A.
They should be kept clean.
B.
They should be kept dry.
C.
They should be in sufficient length.
D.
They should not be overloaded.
查看完整题目与答案
【简答题】In an electric lamp there should not be any oxygen in which the wires may burn away.
查看完整题目与答案
【单选题】Electric Wires should have each feature of the following except ____.
A.
flame retardant
B.
moisture resistant
C.
oil resistant
D.
low conductivity
查看完整题目与答案
【单选题】气固催化反应的内扩散模数 ，其中L为特征长度，若颗粒为圆柱形则L=（）。
A.
厚度/2
B.
R
C.
R/2
D.
R/3
查看完整题目与答案
【单选题】Electric wires in your house are ___________ with poor conductors like rubber or silk.
A.
segregated
B.
insulated
C.
isolated
D.
served
查看完整题目与答案
【单选题】The electric wires in a house____with some kind of insulation.
A.
are covered
B.
were covered
C.
is covered
D.
will been covered
查看完整题目与答案
【判断题】Electricity comes into our houses by flowing through electric wires and cables in the sky.
A.
正确
B.
错误
查看完整题目与答案