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【单选题】
电容式重合闸 ( )
A.
其余选项都不对
B.
只能重合一次
C.
能重合二次
D.
能重合三次
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参考答案:
举一反三
【单选题】The gadgets, they claim, are harmful in extreme cases and heavy users often neglect their friends and family in favor of using them. Question: What does "heavy users" mean?
A.
these people who have a poor heath
B.
these people who often use the gadgets
C.
these people who suffer from obesity
D.
these people who work hard
【判断题】《国务院办公厅关于加强旅游市场综合监管的通知》提出,要充分发挥“12315” 等旅游服务热线和旅游投诉举报网络平台作用,鼓励社会牢各 界积极提供各类违法违规行为线索。
A.
正确
B.
错误
【判断题】立体声FM无线广播系统中,调频之前的信号包含基带信号和频带信号两部分,其中基带信号是左右声道信号的差信号,频带信号则是左右声道信号的和信号。
A.
正确
B.
错误
【简答题】x=13:144.25x-1.75×2=5.9:x= 1 3 : 1 4 4.25x-1.75×2=5.
【单选题】The gadgets, they claim, are harmful in extreme cases and heavy users often neglect their friends and family in favor of using them.Question:What does "heavy users" mean?
A.
These people who always use their mobile phones
B.
These peopel who always smoke
C.
These people who seldom use their mobile phones
D.
these people who seldom smoke
【判断题】立体声FM无线广播系统中,调频之前的信号包含基带信号和频带信号两部分,其中基带信号是左右声道信号的差信号,频带信号则是左右声道信号的和信号。
A.
正确
B.
错误
【简答题】横线里该填多少? 2×______+1=9 ______×3-1.3=3.8 4×______-2.4=4.8 2.5÷(3-______)=5.
【简答题】看拼音写词语。 dù juān hé shì jiān bèi yí dònɡ shāo wēi ( )( ) ( ) ( ) ( )
【单选题】The gadgets, they claim, are harmful in extreme cases and heavy users often neglect their friends and family in favor of using them.Question:What does "heavy users" mean?
A.
people who always use their mobile phones
B.
peopel who always smoke
C.
people who seldom use their mobile phones
D.
people who seldom smoke
【单选题】数据筛选的主要目的是( )
A.
发现数据的错误
B.
纠正数据的错误
C.
找出所需要的某类数据
D.
对数据进行排序
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