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刷刷题刷刷变学霸
举一反三
【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
【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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【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
【单选题】管加热器的作用是（）。
A.
消除多余的双氧水
B.
高温杀菌
C.
加热产品进行消毒
D.
保证正压
【判断题】一效加热蒸汽量大，说明氧化负荷高。
A.
正确
B.
错误
【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
【单选题】KBC80AC001冷却以下那个用户的加热蒸汽凝结水（）
A.
KBC10AC001
B.
KBA10BB001
C.
KBF10AT001
D.
KPF10AT001
【判断题】4113-E2，E3的加热蒸汽都是饱和蒸汽。
A.
正确
B.
错误
【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
【单选题】NCC320柜配有（）个230VAC，250W的加热器。
A.
1；
B.
2；
C.
3；
D.
4
【单选题】更换APU燃油加热器时（）
A.
需拆下APU发动机
B.
可以不拆下APU发动机
C.
只需拆下APU发电机
D.
只需拆下APU引气活门
【单选题】当环境温度超过（）℃时，润滑油加热器不需投用。
A.
15
B.
20
C.
25
D.
35
【判断题】精馏系统紧急停车时，首先切除加热蒸汽量。
A.
正确
B.
错误
【单选题】下列( )用于加热蒸汽。
A.
省煤器
B.
水冷壁
C.
过热器
D.
空气预热器
【判断题】传热油系统油加热器壳程走传热油，管程走蒸汽。
A.
正确
B.
错误
【单选题】传热油系统油加热器为（）换热器。
A.
列管式
B.
浮头式
C.
翅片管式
D.
板式
【判断题】环氧乙烷塔压高联锁会自动切断进料和加热蒸汽。()
A.
正确
B.
错误
【判断题】在油温满足开车条件的情况下，启动冰机前不必启动油加热器。
A.
正确
B.
错误