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【单选题】
Incease the surface roughness of ceramic speciment, the bend strength will ( ).A.
be increased too
B.
be reduced
C.
be increased first then reduced
D.
be not attected
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举一反三
【简答题】树脂(Resin)
【单选题】It is wrong to believe that amber is the fossilized resin of coniferous trees.
A.
Y
B.
N
C.
NG
【单选题】Which of the following is NOT mentioned as an ingredient of composite?
A.
Plastic.
B.
Resin.
C.
Glass.
D.
Steel.
【单选题】A zinc oxide-eugenol cement base is contraindicated for use with self-curing resin restorative materials because( )
A.
the compressive strength of the cement is too low
B.
cement interferes with the polymerization of the resin
C.
zinc oxide and Bis-GMA form. a soluble compound
D.
the cement increases the polymerization shrinkage of the resin
【单选题】Which of the following is mentioned as an ingredient of a composite?
A.
Oil.
B.
Resin.
C.
Glass.
D.
Steel.
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