涂料中的溶剂和稀释剂蒸发后形成涂层,不出现树脂分子结合这种油漆类型应属于()。
A.溶剂挥发型
B.热聚合干燥型
C.双液聚合型
参考答案:A
Although he knew little about the work done in the field, he succeeded ____other more experienced experimenters failed.
A.which
B.that
C.what
D.where
40525034写成万作单位的近似数是( )
A.405万
B.4053万
C.4052万
D.4051万