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【单选题】

感应加热器的加热温度可达()℃以上,热胀均匀,表面洁净,易于自控。

A.
100
B.
200
C.
300
D.
400
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参考答案:
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

【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

【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