Exit Seat Criteria

    If you are sitting in an exit seat, read the information below.

You must:

    Be at least 15 years old and healthy enough to give help.

    Be able to speak, read and understand English well.

    Be able to follow a safe way from the emergency exit (紧急出口).

    Be able to help others away from the plane.

You must not:

    Travel with a pet, such as a dog.

    Travel with someone that needs special care, such as a child.

    If you cannot meet the criteria, ask crew members (工作人员) to move you to another seat. You do not have to say why, just say, "I do not want to sit in an exit seat."

优点

⒈帮助摆脱枯燥无味的工作；

⒉推动科研领域发展；

⒈ ......

弊端

⒈导致失业；

⒉纵容懒惰；

⒊......

物质

a

b

c

d

反应前的质量/g

6.4

14.0

3.2

1.0

反应一段时间后的质量/g

10.0

7.2

x

1.0