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【单选题】
通常把机构解释为( )。A.
具有确定相对运动构件的组合
B.
具有确定相对运动元件的组合
C.
具有确定相对运动机件的组合
D.
具有确定相对运动零件的组合
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皮皮学刷刷变学霸
举一反三
【单选题】2单选With a thermoset prepreg, the primary resin matrix used is _____
A.
epoxy resin
B.
phenolic resin
C.
PEEK
D.
BMI
【简答题】How far can the poisonous resin be shot?
【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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