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【单选题】
在完全竞争市场中,企业在长期均只能获得等于零的经济利润,是因为( )
A.
企业可以自由进入或退出
B.
每个企业生产的产品是同质的
C.
企业受到生产能力的约束
D.
企业受到技术水平的约束
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参考答案:
举一反三
【简答题】输气管道内涂层防腐可以防止输气管内壁腐蚀、可以减小管内壁与天然气的摩擦,从而减小______、可以达到提高输量的效果。
查看完整题目与答案
【单选题】将防腐涂料涂抹在输气管道内壁,使其形成一层内壁涂层,可以起到防止输气管内壁腐蚀的作用,这种防腐方法称为( ).
A.
防腐绝缘层
B.
防腐涂层
C.
内涂层防腐
D.
缓蚀剂防腐
查看完整题目与答案
【单选题】Determine vo in the circuit shown in the Fig..( )
A.
20V
B.
30V
C.
50V
D.
60V
查看完整题目与答案
【单选题】The thought suddenly came to him he should go abroad for further study.
A.
that
B.
what
C.
which
D.
who
查看完整题目与答案
【单选题】Determine vo in the circuit shown in the Fig. when Ro is 10Ω.( )
A.
20V
B.
30V
C.
50V
D.
60V
查看完整题目与答案
【简答题】In the circuit shown in the figure, determine vx and the power absorbed by the 12-Ω resistor.
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【单选题】She is the second _______student in our class.
A.
tall
B.
taller
C.
tallest
查看完整题目与答案
【单选题】Or, critical thinking is thinking that analyzes thought, that assesses thought, and that transforms thought for the better.
A.
accesses
B.
evaluates
C.
scrutinizes
D.
decomposes
查看完整题目与答案
【单选题】The thought of eating a rat is abhorrent to most people.
A.
fun, lively.
B.
horrible, repugnant.
C.
delicious, tasty.
D.
sweet, sugary.
查看完整题目与答案
【单选题】将防腐涂料涂抹在输气管道内壁,使其形成一层内壁涂层,可以起到防止输气管内壁腐蚀的作用,这种防腐方法称为( )
A.
防腐绝缘
B.
防腐涂层
C.
内涂层防腐
D.
缓蚀剂防腐
查看完整题目与答案
相关题目:
【简答题】输气管道内涂层防腐可以防止输气管内壁腐蚀、可以减小管内壁与天然气的摩擦,从而减小______、可以达到提高输量的效果。
查看完整题目与答案
【单选题】将防腐涂料涂抹在输气管道内壁,使其形成一层内壁涂层,可以起到防止输气管内壁腐蚀的作用,这种防腐方法称为( ).
A.
防腐绝缘层
B.
防腐涂层
C.
内涂层防腐
D.
缓蚀剂防腐
查看完整题目与答案
【单选题】Determine vo in the circuit shown in the Fig..( )
A.
20V
B.
30V
C.
50V
D.
60V
查看完整题目与答案
【单选题】The thought suddenly came to him he should go abroad for further study.
A.
that
B.
what
C.
which
D.
who
查看完整题目与答案
【单选题】Determine vo in the circuit shown in the Fig. when Ro is 10Ω.( )
A.
20V
B.
30V
C.
50V
D.
60V
查看完整题目与答案
【简答题】In the circuit shown in the figure, determine vx and the power absorbed by the 12-Ω resistor.
查看完整题目与答案
【单选题】She is the second _______student in our class.
A.
tall
B.
taller
C.
tallest
查看完整题目与答案
【单选题】Or, critical thinking is thinking that analyzes thought, that assesses thought, and that transforms thought for the better.
A.
accesses
B.
evaluates
C.
scrutinizes
D.
decomposes
查看完整题目与答案
【单选题】The thought of eating a rat is abhorrent to most people.
A.
fun, lively.
B.
horrible, repugnant.
C.
delicious, tasty.
D.
sweet, sugary.
查看完整题目与答案
【单选题】将防腐涂料涂抹在输气管道内壁,使其形成一层内壁涂层,可以起到防止输气管内壁腐蚀的作用,这种防腐方法称为( )
A.
防腐绝缘
B.
防腐涂层
C.
内涂层防腐
D.
缓蚀剂防腐
查看完整题目与答案
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