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【单选题】
变频控制器检修中,与规程一般检查项目条文不符的是()
A.
变频器的各部件应装配牢固,各紧固件和接线无松动;手盘电机及机械转动应灵活、无故障
B.
变频器与电机的连线长度没有限制,但控制电缆与动力电缆应注意分开布置,其中控制电缆宜选用屏蔽电缆
C.
变频器的安装环境应符合变频器说明书要求,控制柜内通风扇应工作正常
D.
变频器接线、参数设定应符合技术说明书要求
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举一反三
【单选题】Which of the following statements is true according to the passage?
A.
Writing changes as fast as speech.
B.
Children do not write as well as adults.
C.
Speech changes faster than writing.
D.
Older people make fewer mistakes in speech.
【简答题】将断面图形画在视图之内的断面图称为()。
【简答题】连词成句,注意标点符号和大小写。 1. season   best   Which   like   you   do  (?) 2. Winter   like   best   I  (.) 3. is   favourite   season   Fall   my  (.)
【单选题】患者行粪便隐血试验前,医生应该告知患者下列哪种食物不要吃( )
A.
大米稀饭
B.
面包
C.
油条
D.
瘦肉
E.
豆角
【简答题】In this section, you are asked to write a composition entitled Which Is More Important, Family or Career? Your composition should be about 150 words.
【判断题】深基础分为桩基础、墙下条形基础和地下连续墙箱基础
A.
正确
B.
错误
【单选题】的目的在于防止传染病由外国传入或者由国内传出,保护人体健康。
A.
海关监管
B.
卫生检疫
C.
动植物检疫
D.
边防检查
【单选题】Which is NOT true about e-mail?
A.
It is sent through the telephone line.
B.
It is good for family relationship.
C.
Only people good at writing like e-mail.
D.
E-mail is becoming very popular in people's life and work.
【简答题】画在视图之外的断面图称为____,画在视图之内的断面图称为____。
【单选题】Which of the following titles is most appropriate to the passage?
A.
Polarity Reversal: A Fantastic Phenomenon of Nature.
B.
Measurement of the Earth's Magnetic-Field Intensity.
C.
Formation of the Two Poles of the Earth.
D.
A New Approach to the Study or Geophysics.
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