造成血小板减少的原因哪项不正确A．慢性粒细胞白血病 B．血小板生成障碍 C．血小板破

一个等腰直角三角形的一条直角边是6cm，它的面积是______．

端午节吃粽子是中 * * 的习惯，今年农历五月初五早餐时，小明妈妈端上一盘粽子，其中有3个肉馅粽子和7个豆沙馅粽子，小明从中任意拿出一个，恰好拿到肉馅粽子的概率是（    ）。

同视机检查时正常融合范围为（）。

A.辐辏15°～20°，分开4°～6°

B.辐辏25°～30°，分开4°～6°

C.辐辏35°～50°，分开4°～6°

D.辐辏10°～15°，分开8°～10°

E.辐辏15°～20°，分开8°～10°

句型转换填空。

1. He has never surfed, _______ _______ ?(改成反意疑问句)  

2. They have been here since 2000.  (对划线部分提问)

_______ _______ have they been here?

3. The old man _______ last year. He _______ _______ for a year. (die) (动词填空)

4. This factory opened twenty years ago.(同义句转换)

This factory _______ _______ _______ for twenty years.

5. Miss Gao left an hour ago.  (同义句转换)

Miss Gao _______ _______ _______ _______ an hour ago.

6. Her mother has been a Party member for three years .(同义句)

Her  mother_______ the  Party  three  years  _______ .

7. The Green Family moved to France two years ago. (同义句转换)

_______ two years _______ the Green family moved to France.

8. The bus has arrived here. It arrived ten minutes ago. (把两个句子合并成一个句子)  

__________________________________________

既能驱虫，又能疗癣的药物（）

A.使君子

B.苦楝皮

C.槟榔

D.南瓜子

E.雷丸