阳极电泳涂料使用的成膜聚合物是阳离子型树脂，常用的都是多羟基的聚合物，中和剂为有机酸。( )
参考答案：错
Tom went to open the door.________, his father began to wash dishes.[ ]
A. However
B. Nevertheless
C. Besides
D. Meanwhile
古希腊提出问答法的哲学家和思想家是______。
