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【单选题】
CRH2A型动车组保温转换开关正常使用位置是置于左侧,功能是室外温度()℃以下,自动投入保温加热器。
A.
10
B.
15
C.
5
题目标签:
转换开关
加热器
保温加热器
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参考解析:
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【单选题】Most shoppers know the feeling. You stand in front of piles of organic produce and wonder what those premium prices are buying you over and above what you get from standard foods. Not a lot nutrition-...
A.
do not use naturally produced fertilisers
B.
produce carbon dioxide when removing weeds
C.
use high doses of weed-killer
D.
use too many resources to qualify for organic status
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【简答题】低压加热器设有()和()。
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【单选题】Most shoppers know the feeling. You stand in front of piles of organic produce and wonder what those premium prices are buying you over and above what you get from standard foods. Not a lot nutrition-...
A.
they are approved by many experts
B.
C. they won’t cause diseases
C.
B. they taste better than standard foods
D.
they are free from pesticides
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【简答题】高压箱转换开关的三种工况___、___、___。
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【简答题】管加热器的作用是:()。
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【单选题】转换开关的文字符号是
A.
QF
B.
SA
C.
SB
D.
FU
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【多选题】⾼压加热器分为()
A.
混合式
B.
表⾯式
C.
对流式
D.
逆流式
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【单选题】NCC320柜配有()个230VAC,250W的加热器。
A.
1;
B.
2;
C.
3;
D.
4
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【单选题】转换开关的文字符号是()。
A.
SB
B.
KM
C.
QS
D.
SQ
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【单选题】当2个EFI转换开关放ALTN位,左侧F/D选择开关放L,右侧放R,这时:()
A.
左EADI上F/D来自L FCC,右EADI上F/D来自R FCC
B.
左、右EADI上F/D来自C FCC
C.
左、右EADI上F/D来自L FCC
D.
不确定
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