人体中的血液属于输导组织．（判断对错）

Dear friend,
       I am an American (美国的 ) girl. My name is Alice Green. I am a middle school student. I am fifteen. I have two brothers. They are middle school students, too. We go to school from Monday to Friday. We don't have any classes on Saturdays and Sundays. My father and mother are teachers. They always say China is great. I like reading. I am reading a Chinese book. I think it's very interesting. My brothers and I like playing football and basketball. What sports do you like?
     Let's be good pen pals (笔友), OK? Please write to me soon.
Yours,
Alice Green

大多数老年人头发变白的直接原因是头发基部细胞内

如图，∠1=∠2，添加一个条件使得△ADE∽△ACB____ ．