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 The Importance of First Aid First aid is the immediate care given to a person who has been injured or suddenly ill, including selfhelp and home care if medical help is not available or delayed. First aid knowledge means life or death during an emergency situation so that the greatest possible good may be done for the greatest number of people. General Treatment to Burns ● Move the injured away from the heat source. ● Check the breathing and pulse as well as the extent and depth of burns. ● Flush the burnt area with water to reduce pain. ● Cover the wound with a sterilized (消毒的) dressing. ● For facial burns, use sheets or something else to cover the burnt area. Heatstroke(中暑) To avoid heatstroke, you should stop rough activities in hot weather. If you are still to go outdoors, you should: ● wear light loose-fitting clothing; ● rest in a cool place as often as possible; ● drink pure water or fruit juice; ● avoid beverages (饮料) such as milk, tea, wine, beer. First Aid training There are some organizations giving first aid courses recognized by the local government. For more information, you can call the Fire Services Ambulance Command Training School on 2640 3708. |
1．If someone is burnt, you should let him or her ________.
| A．wear light loose-fitting clothing | B．move away from the heat source |
| C．rest in a cool place as often as possible | D．be covered with a sheet or something else |
| A．First aid is given when medical help is unavailable or delayed. |
| B．A sterilized dressing is used to cover the wound to reduce pain. |
| C．Beverage should be avoided if someone is suffering heatstroke. |
| D．A call on 2640 3708 can offer information about first aid training. |
| A．To introduce some first aid training courses and schools. |
| B．To show the importance of first aid with some examples. |
| C．To praise an organization that is related to first aid training. |
| D．To tell the readers how to perform some first aid treatment. |
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y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
