写作者通过全篇内容表达出来的贯穿全文的写作意图、观点和公务活动的行为意向，称为应用文

阅读理解。

      Hello!  My name is Gina. I have two brothers.  They are Dave and Alan.  Dave likes sports

very much. He likes to play volleyball. He plays volleyball every afternoon. He has five volleyballs.

Alan doesn't like sports. He likes to watch TV. He watches TV every evening.

1.Is Gina Dave's sister?

______________________________________________________

2.Does Dave play volleyball every afternoon?

______________________________________________________

3.How many volleyballs does Dave have?

______________________________________________________

4.Who likes to watch TV, Gina, Dave or Alan?

______________________________________________________

5.How many brothers does Gina have?

______________________________________________________

有两瓶没有标签的无色气体，只知它们分别是氧气和二氧化碳．请设计一个实验方案将它们区分开来，并将实验操作、预期现象和结论填写在下表中：

试述面神经的颅外分支及其分布。

简述对发酵剂活力的酸度检测的方法与结果？

商业银行风险管理的核心要素不包括( )。

A．价格确认
B．降低风险
C．技术支持
D．模型创新