风湿病的基本病变分为______、______和______三个期。
参考答案:变质渗出期,增生期,疤痕期
----Travelling helps us understand life better.
---- ___________.
A.Actually
B.Exactly
C.Gradually
D.Especially
A.E=Bav,
B.E=NBav,
C.E=Bav,
D.E=NBav,