某电器城5、6两个月所销售的三种电器资料如下：利用题干中所给资料计算得到的销售价格指

阅读理解。

     Welcome to our zoo. We have many animals. And we have some new

animals today. They are two pandas. They are two years old. They are

very beautiful,but they are very shy. You can see them form 9:30a.m. to

5:00 p.m. this Sunday. If you come here on Sunday, you can watch them

playing and eating things. Only 200 people can come in. If you want to

see them, please book the tickets（预订票）before this Wednesday.

The tickets for a student is $4. The tickets for a teacher or a parent is

$7. Please come and see.

1.What are the new animals in the zoo? 

A.Koalas.

B.Dolphins.

C.Pandas.

D.Giraffes

2.How old are the new animals?

A.One year old

B.Two years old.

C.Three years old.

D.Four years old.

3.What time can you see the new animals?

A.At 8:30 a.m. this Saturday

B.At 10:30 a.m. this Saturday

C.At 5:30 p.m. this Sunday

D.At 3:00 p.m. this Sunday

4.You can book the tickets on.        

A.Tuesday

B.Thursday

C.Friday

D.Saturday

5.John is 13. He goes to the zoo with his parents. How much are the tickets?

A.$11.

B.$12.

C.$18.

D.$21.0

常温下，下列各组离子一定能大量共存的是

A．滴加甲基橙试剂显红色的溶液中：Na^＋、Fe^2＋、Cl^－、NO₃^－

B．[H⁺]=10^-12 mol·L^-1的溶液：K⁺、Ba²⁺、Cl^-、Br^-

C．[OH^－]/ [H⁺]＝10¹²的溶液中：NH₄^＋、Al^3＋、NO₃^－、CO₃^2－

D．由水电离的[H⁺]＝1.0×10^－13 mol·L^－1的溶液中：K^＋、NH₄^＋、[Al(OH)₄]^－、HCO₃^－

女性，42岁。半年前因突发呕新鲜血1800ml住院治疗，并确诊为门静脉高压症，经保守治疗好转后出院。本次又因大量呕血住院，经三腔二囊管压迫止血等综合治疗6天后，出血停止24小时，拔除三腔二囊管后，再次发生大出血。

目前，应采取的治疗措施是（）

A.输血+垂体加压素

B.输血+三腔二囊管压迫止血

C.经纤维内镜注射硬化剂

D.急诊手术

E.经腹腔动脉插管应用止血药

下列物质在氧气中燃烧，火星四射的是（　　）

A．红磷

B．铁丝

C．木炭

D．氢气

简述安全教育的基本途径。