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【单选题】
三相交流鼠笼异步电动机常用的改变转速方法是（）。
A.
改变电压
B.
改变极数
C.
定子串联电阻
D.
改接为Y接法
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参考答案：
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【简答题】Soccer is widely considered to be the most popular sport in the world. More people watch and play soccer than any other sport. Soccer is called "football" in England, where it comes from, and in many ...
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【判断题】维修车辆竣工验收后,维修接待员应向客户告知车辆的故障原因、今后行车注意事项和质量保证期等相关内容,引导客户办理结算手续。
A.
正确
B.
错误
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【单选题】螺纹标记Tr52×16(P2)-7H中,螺距、导程、线数分别是( )
A.
16,2,8
B.
2,16,8
C.
8,2,16
D.
8,16,2
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【单选题】螺纹标记Tr52×16(P2)-7H中,螺距、导程、线数分别是:( )
A.
16,2,8
B.
2,16,8
C.
8,16,2
D.
8,2,16
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【单选题】某电容滤波的单相不控整流电路的输入交流电压有效值为220V,滤波电容C和负载电阻R,满足RC>(3-5)T/2 时(T 表示交流电源周期),输出电压约为( )
A.
311
B.
264
C.
220
D.
400
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【简答题】What is a market segment?
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【单选题】________ consists of evaluating each market segment's attractiveness and selecting one or more market segments to enter.
A.
Positioning
B.
Mass customization
C.
Market targeting
D.
Market segmentation
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【单选题】Which of the following sentences is not related to the topic of the paragraph?"Daredevil sports are also becoming popular. Young people especially are increasingly willing to risk life and limb while ...
A.
Young people especially are increasingly willing to risk life and limb while mountain biking, backgcountry snowboarding, or high-speed skateboarding.
B.
Soccer is also popular in the United States now, although football is still more popular.
C.
One of the riskiest new sports is skysurfing, in which people jump out of airplanes with boards attached to their feet.
D.
Skysurfing rivals skydiving and bungee jumping for the amount of thrills and risk.
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【单选题】W.E.R在maya中是那几个命令的快捷键
A.
位移，旋转，缩放
B.
位移，缩放，旋转
C.
旋转，缩放，位移
D.
缩放，位移，旋转
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【简答题】Soccer is widely considered to be the most popular sport in the world. More people watch and play soccer than any other sport. Soccer is called "football" in England, where it comes from, and in many ...
查看完整题目与答案
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【简答题】Soccer is widely considered to be the most popular sport in the world. More people watch and play soccer than any other sport. Soccer is called "football" in England, where it comes from, and in many ...
查看完整题目与答案
【判断题】维修车辆竣工验收后,维修接待员应向客户告知车辆的故障原因、今后行车注意事项和质量保证期等相关内容,引导客户办理结算手续。
A.
正确
B.
错误
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【单选题】螺纹标记Tr52×16(P2)-7H中,螺距、导程、线数分别是( )
A.
16,2,8
B.
2,16,8
C.
8,2,16
D.
8,16,2
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【单选题】螺纹标记Tr52×16(P2)-7H中,螺距、导程、线数分别是:( )
A.
16,2,8
B.
2,16,8
C.
8,16,2
D.
8,2,16
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【单选题】某电容滤波的单相不控整流电路的输入交流电压有效值为220V,滤波电容C和负载电阻R,满足RC>(3-5)T/2 时(T 表示交流电源周期),输出电压约为( )
A.
311
B.
264
C.
220
D.
400
查看完整题目与答案
【简答题】What is a market segment?
查看完整题目与答案
【单选题】________ consists of evaluating each market segment's attractiveness and selecting one or more market segments to enter.
A.
Positioning
B.
Mass customization
C.
Market targeting
D.
Market segmentation
查看完整题目与答案
【单选题】Which of the following sentences is not related to the topic of the paragraph?"Daredevil sports are also becoming popular. Young people especially are increasingly willing to risk life and limb while ...
A.
Young people especially are increasingly willing to risk life and limb while mountain biking, backgcountry snowboarding, or high-speed skateboarding.
B.
Soccer is also popular in the United States now, although football is still more popular.
C.
One of the riskiest new sports is skysurfing, in which people jump out of airplanes with boards attached to their feet.
D.
Skysurfing rivals skydiving and bungee jumping for the amount of thrills and risk.
查看完整题目与答案
【单选题】W.E.R在maya中是那几个命令的快捷键
A.
位移，旋转，缩放
B.
位移，缩放，旋转
C.
旋转，缩放，位移
D.
缩放，位移，旋转
查看完整题目与答案
【简答题】Soccer is widely considered to be the most popular sport in the world. More people watch and play soccer than any other sport. Soccer is called "football" in England, where it comes from, and in many ...
查看完整题目与答案
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