By "association" in the last paragraph, the author means ___________.
A.a special quality
B.a joining of ideas in the mind
C.an appearance which is puzzling
D.a strange feature
正确答案是B
By "association" in the last paragraph, the author means ___________.
A.a special quality
B.a joining of ideas in the mind
C.an appearance which is puzzling
D.a strange feature
正确答案是B