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图为种子呼吸作用和植物光合作用实验图，请据图回答：

Besides calling 120, here is what you should do when no one is around to help.

If you get lost, you may stay where you can be seen clearly and try your best to have a rest. In a wide open area, make a colorful cross out of rocks to show where you stay.

When you choke at home, make a sudden hit against the back of the chair. If you can't breathe after six tries, call 120. Leave the telephone open until help arrives.

Use your hand or a scarf, or any dry cloth you can find, and push down on the wound until the blood stops running. Don't put the cloth around your leg tightly(过紧), or you may lose your foot.

When a fire breaks out, you must move close to the floor. Cover your mouth and nose with a wet towel, make you wet from head to foot if possible and find a safe place outside.

    For most people, the word “fashion” means “clothes”. But people may ask the question, “What clothes are in fashion?” And they use the adjective “fashionable” in the same way: 
    “She was wearing a fashionable coat. His shirt was really a fashionable color.”
But of course there are fashions in many things, not only in clothes. There are fashions in holidays, in restaurants, in films and books. There are even fashions in school subjects, jobs…and in languages.
    Fashions change as time goes. If you look at pictures of people or things from the past, you will see that fashions have always changed. An English house of 1750 was different from one of 1650. A fashionable man in 1780 looked very different from his grandson in 1860.
    Today fashions change very quickly. Some of this is natural. We hear about things much more quickly than in the past. Newspaper, radios, telephones and television send information from one country to another in a few hours. New fashions mean that people will buy new things, so you see there is money in fashion.