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【单选题】
一台三相异步电动机，额定功率10kW，额定转速1440r/min，额定电压为380V，额定频率50Hz，额定效率0.90，额定功率因数0.85。电动机的磁极对数P和额定电流IN为( )。
A.
P=1 、 IN=19.86A
B.
P=2 、 IN=34.4A
C.
P=2 、 IN=17.8A
D.
P=2 、 IN=19.86A
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参考答案：
举一反三
【多选题】在SKETCHUP 8中，下列哪些方法可以插入组件( )
A.
文件一一导入
B.
直接从资源管理器拖放到绘图窗口
C.
工具一一组件
D.
绘图——组件
查看完整题目与答案
【单选题】. Tommy’s parents thought he was at school, but _______ he was in an Internet bar.
A.
actually
B.
at present
C.
especially
D.
fortunately
查看完整题目与答案
【单选题】Why does Chris’ wife leave him?
A.
Because she doesn’t love him.
B.
Because she loves someone else.
C.
Because she can’t afford the heavy burden of life and is disappointed with Chris.
D.
Because she is ill.
查看完整题目与答案
【单选题】Why does the CEO invite Chris and his son to watch football with him?
A.
He is moved by Chris’s sincere attitude.
B.
He likes Chris’s son.
C.
He has no companion to the football game.
D.
He wants to know more about Chris’s family.
查看完整题目与答案
【单选题】When he was in prison he was not allowed to_______ with his family.
A.
commit
B.
communicate
C.
commission
D.
command
查看完整题目与答案
【多选题】在SKETCHUP 8中，下列哪些方法可以柔化边线( )
A.
使用删除工具时按住CTRI键
B.
边线上右键一-柔化
C.
工具一一柔化边线
D.
绘图一-柔化边线
查看完整题目与答案
【单选题】He never arrives on time and my（ ）is that he feels the meetings are useless.
A.
preference
B.
conference
C.
inference
D.
reference
查看完整题目与答案
【单选题】Why did Chris's friend Wayne think that he didn't owe Chris that $14 any more?
A.
Because he thought he had paid off debts by helping Chris move.
B.
Because he had paid off debts long time ago.
查看完整题目与答案
【简答题】A．He needs to press F - 7 to return to the document before he prints it. B．He has to print tile document to see the page numbers. C．The printer is not working correctly. D．The numbers are on the scree...
查看完整题目与答案
【多选题】在SKETCHUP 8中，下列哪些方法可以激活油漆桶工具。
A.
绘图 ——油漆桶
B.
工具 ——油漆桶
C.
右键 ——油漆桶
D.
快捷键 B
查看完整题目与答案
相关题目：
【多选题】在SKETCHUP 8中，下列哪些方法可以插入组件( )
A.
文件一一导入
B.
直接从资源管理器拖放到绘图窗口
C.
工具一一组件
D.
绘图——组件
查看完整题目与答案
【单选题】. Tommy’s parents thought he was at school, but _______ he was in an Internet bar.
A.
actually
B.
at present
C.
especially
D.
fortunately
查看完整题目与答案
【单选题】Why does Chris’ wife leave him?
A.
Because she doesn’t love him.
B.
Because she loves someone else.
C.
Because she can’t afford the heavy burden of life and is disappointed with Chris.
D.
Because she is ill.
查看完整题目与答案
【单选题】Why does the CEO invite Chris and his son to watch football with him?
A.
He is moved by Chris’s sincere attitude.
B.
He likes Chris’s son.
C.
He has no companion to the football game.
D.
He wants to know more about Chris’s family.
查看完整题目与答案
【单选题】When he was in prison he was not allowed to_______ with his family.
A.
commit
B.
communicate
C.
commission
D.
command
查看完整题目与答案
【多选题】在SKETCHUP 8中，下列哪些方法可以柔化边线( )
A.
使用删除工具时按住CTRI键
B.
边线上右键一-柔化
C.
工具一一柔化边线
D.
绘图一-柔化边线
查看完整题目与答案
【单选题】He never arrives on time and my（ ）is that he feels the meetings are useless.
A.
preference
B.
conference
C.
inference
D.
reference
查看完整题目与答案
【单选题】Why did Chris's friend Wayne think that he didn't owe Chris that $14 any more?
A.
Because he thought he had paid off debts by helping Chris move.
B.
Because he had paid off debts long time ago.
查看完整题目与答案
【简答题】A．He needs to press F - 7 to return to the document before he prints it. B．He has to print tile document to see the page numbers. C．The printer is not working correctly. D．The numbers are on the scree...
查看完整题目与答案
【多选题】在SKETCHUP 8中，下列哪些方法可以激活油漆桶工具。
A.
绘图 ——油漆桶
B.
工具 ——油漆桶
C.
右键 ——油漆桶
D.
快捷键 B
查看完整题目与答案
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