Read and judge. （阅读对话，判断对“√”错“×”）

A: Hey! Look at that dress. It's pretty！

B: Yes, it is. How much is this dress?

Assistant: It's eighty-nine yuan.

B: Oh, that is expensive. How about that one?

Assistant: It's twenty yuan.

( )1. The first dress is very cheap.

( )2. The first dress is very pretty.

( )3. The second dress is 30 yuan.

( )4. The first dress is 88 yuan.

扩张型心肌病最主要的病理学特征是（）

A.心室扩大

B.室壁薄

C.心室纤维化

D.心肌细胞肥大

E.心肌坏死