阅读理解。

     Look at this It’s a blue bag. It is my bag. What’s in it? Look, this is my English book. It’s blue, too.

My Chinese book is also in my bag. It is yellow. This is my pencil case. It’s big and nice. I like English

and Chinese. My bag is my good friend.

1. My bag is______ .

A. yellow

B. blue

C. nice

D. big

2. —What’s in my bag? 

    —______.

A. My English book

B. My Chinese book

C. My pencil case

D. All the three

3. My Chinese book is also in my bag. "also" means(意思是)______ .

A.也

B.颜色

C.不在

D.放进

4. Myis my good friend______.

A. Chinese book

B. English book

C. pencil case

D. bag

5. My pencil case is______.

A. yellow

B. blue

C. big and nice

D. my friend

只依据CD7抗原不能诊断T-ALL，原因是有的遗传学标志有（）。

A.CD7与部分B淋巴细胞有交叉

B.对CD7的检测不敏感

C.CD7在T淋巴细胞的发育过程中出现较晚

D.CD7在T淋巴细胞的发育过程中出现早，但消失也早

E.CD7与急性髓细胞性白血病有5％～10％的交叉反应