阅读短文，判断正(√)误(×)。

      The panda lives in China. It lives in mountains. It lives in bamboo forests. The panda can climb trees and

eat bamboos. Now there are only 1000 pandas in China. They need nature parks.

( ) 1. The panda can't climb trees.

( ) 2. The panda lives in China.

( ) 3. The panda eats grass.

( ) 4. There are many pandas now.

( ) 5. The pandas need nature parks.

( ) 6. We should protect (保护) the pandas.

下列哪项指标在诊断ITP中起关键作用（）

A.血小板计数

B.血小板平均体积

C.血栓止血试验

D.血小板寿命及抗体测定

E.血液涂片检查