铁钉和碳棒用导线连接后浸入0.01 mol·L-1的食盐溶液中，可能发生[ ]

阅读理解。

              How do Fred spend one week?

1. Where does Fred meet Ann? 

A. At Brown's house.

B. In the hospital.

C. At the station.

D. At Kay's house.

2. For how many hours a week does Fred do his part-time job?

A. Five hours.

B. Six hours.

C. Ten hours.

D. Eleven hours.

3. _____ is ill in hospital.

A. Brown.

B. Joy

C. Tom.

D. Kay.

4. Kay's birthday is on _____.

A. Tuesday.

B. Friday.

C. Sunday.

D. Thursday.

5. What does Fred do on Saturday afternoon?

A. Play football.

B. Study with Tom.

C. Have a dancing class.

D. Do part-time job.

衡量管理层对内部控制重视程度的重要标准是（）。

A.管理层收到有关内部控制弱点及违规事件的报告时是否作出适当反应

B.管理层告知员工内部控制的重要性

C.管理层的理念和经营风格

D.管理层对企业的运作以及经营策略和程序的制定

Jack likes swimming, but he doesn't enjoy skating.________. [ ]

A. So do I  

B. It is so with me

C. Neither do I  

D. So it is with me

酚酞医药名为果桃，可治疗消化系统疾病，其有效成分的结构简式如图所示。下列对该有效成分的说法正确的是（   ）

A．所有原子可能共平面

B．能发生加聚反应生成高分子化合物

C．酚酞的水解产物中含有醇羟基

D．1 mol该物质最多能与含4 mol NaOH的烧碱溶液反应

能破坏中止燃烧的物质是灭火剂.