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【单选题】
关于汽车空调中的蒸发器，哪种说法不正确（）A.
蒸发器有管片式、管带式、层叠式三种
B.
蒸发器可以装在仪表板内或下方
C.
蒸发器能够将气态制冷剂变为液态
D.
层叠式蒸发器结构紧凑，散热效率高
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举一反三
【简答题】His take-off was _________. 他的起跳毫不费力(轻松自如)。
【单选题】The boy was so tired that he fell asleep _____________ his mother could take off his clothes．
A.
before
B.
after
C.
while
D.
where
【单选题】— Jack has got a bad cold. — Yeah. I told him not to take off his coat, but it was stubborn of him ____my advice.
A.
don’t take
B.
didn’t take
C.
not to take
D.
not take
【单选题】The boy was so tired that he fell asleep ______ his mother could take off his clothes．
A.
before
B.
after
C.
while
D.
when
【单选题】不同食品、不同流通环境,对包装保护功能的要求不同。油炸豌豆要求其包装能( )。
A.
阻氧、避光照
B.
一定的O2 、CO2和水蒸气的透过率
C.
耐压防潮
D.
避光、一定水蒸气的透过率
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