溶剂型涂料、水溶性涂料和乳胶涂料属于( )。
A.有机涂料B.无机涂料C.复合涂料D.油漆类涂料
参考答案:A
He was _____ tired _______ he fell asleep as soon as he lay down. [ ]
A. so; that
B. too; to
C. enough; to
D. such; that
林奈认为物种是()。
A.可变的
B.可进化的
C.永恒的
D.孤立的