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(10)中涂底漆层打磨时需将光滑表面打磨呈哑光(无光泽),否则会减小中涂底漆层与面漆层的附着力。
A.
正确
B.
错误
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举一反三
【单选题】In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance airport security. They called it "protecting civilization from the faces...
A.
any way, the face-recognition technology is good enough to frighten the terrorists
B.
the industry will have to recognize the real situation and work hard to improve the technology
C.
all the claims are premature
D.
we must not expect too much
【单选题】Passage 4 In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance airport security. They called it "protecting civ...
A.
Too many false alarms were raised.
B.
Everyone should look straight at the camera.
C.
Only 90% of suspects at an airport were found.
D.
Everyone should not disguise himself.
【单选题】关于电泳涂装（ED漆层），以下哪一项正确？（）
A.
它基本上是底层油漆的施涂方法，但可以用于中层油漆。
B.
它可以形成统一的涂层，并覆盖每个角落和缝隙。
C.
形成的涂层有30~40μ
D.
干燥的温度需要达120~130℃
【单选题】如果底漆层损伤，进行修理。
A.
If the first coat is damaged, do a repair.
B.
If the protective finish is damaged, do a repair.
C.
If the primer layers are damaged, do a repair.
相关题目：
【单选题】In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance airport security. They called it "protecting civilization from the faces...
A.
any way, the face-recognition technology is good enough to frighten the terrorists
B.
the industry will have to recognize the real situation and work hard to improve the technology
C.
all the claims are premature
D.
we must not expect too much
【单选题】Passage 4 In the wake of 11 September, Visionics, a leading manufacturer, issued a fact sheet explaining how its technology could enhance airport security. They called it "protecting civ...
A.
Too many false alarms were raised.
B.
Everyone should look straight at the camera.
C.
Only 90% of suspects at an airport were found.
D.
Everyone should not disguise himself.
【单选题】关于电泳涂装（ED漆层），以下哪一项正确？（）
A.
它基本上是底层油漆的施涂方法，但可以用于中层油漆。
B.
它可以形成统一的涂层，并覆盖每个角落和缝隙。
C.
形成的涂层有30~40μ
D.
干燥的温度需要达120~130℃
【单选题】如果底漆层损伤，进行修理。
A.
If the first coat is damaged, do a repair.
B.
If the protective finish is damaged, do a repair.
C.
If the primer layers are damaged, do a repair.
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