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【判断题】

通用式喷嘴是最普遍的形式,制造方便,无 加热装置,注射压力损失小,常用于聚乙烯、聚苯乙烯、聚氯乙烯及纤维素等的注射成型。

A.
正确
B.
错误
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【单选题】Desperately short of living space and erously prone to flooding, the Netherlands plans to start building homes, businesses and even roads on water. With nearly a third of the country already cover...

A.
most parts of the country are covered by water
B.
the country is constantly threatened by floods
C.
it will promote the cultivation of flowers
D.
people think it better to live on water

【多选题】PVC(聚氯乙烯),多用以制造( )

A.
水管
B.
装汽水的塑料瓶
C.
雨衣
D.
塑料袋

【单选题】目前的塑料大棚最常用的塑料薄膜是聚氯乙烯薄膜和()。

A.
聚碳酸脂薄膜
B.
无滴丹宁薄膜
C.
聚乙烯薄膜
D.
聚丙乙烯薄膜
相关题目:
【单选题】Desperately short of living space and erously prone to flooding, the Netherlands plans to start building homes, businesses and even roads on water. With nearly a third of the country already cover...
A.
most parts of the country are covered by water
B.
the country is constantly threatened by floods
C.
it will promote the cultivation of flowers
D.
people think it better to live on water
【多选题】PVC(聚氯乙烯),多用以制造( )
A.
水管
B.
装汽水的塑料瓶
C.
雨衣
D.
塑料袋
【单选题】目前的塑料大棚最常用的塑料薄膜是聚氯乙烯薄膜和()。
A.
聚碳酸脂薄膜
B.
无滴丹宁薄膜
C.
聚乙烯薄膜
D.
聚丙乙烯薄膜