In the passage, the Sony Walkman is referred to as the creation of a large marketing research team
an example of uncomplicated product development
superior to all similar devices produced afterwards
something produced in response to in-depth market research
a product invented by Akio Morita, the chairman of Sony
When the Big Mac was first introduced, it was the first hamburger ever to be put on the market
the result of technical and scientific development
the result of an accidental discovery at McDonald's
a known item but a fresh product for McDonald's
the first product ever produced by McDonald's
A new product nowadays must be something completely new to the consumer
is always the result of creativity and invention
is usually produced in response to consumer demand
should be manufactured in large quantities to meet the huge demand
is more often created or discovered by accident
48 HOW TO TREAT FROSTBITE Frostbite is a common injury in winter weather, particularly when low temperatures are combined with wind. The nose, ears, fingers, toes, and chin are the most susceptible. The involved part begins to tingle or hurt mildly and then becomes numb. Frozen tissue usually ranges from distinctly white in light-skinned people to ashen grey in dark-skinned people. Here are some tips to help rescue someone with frostbite:
1. Remove the person from the cold as soon as possible.
2. Every effort should be made to protect the frozen part. If there is a chance that the part might refreeze before reaching medical care, it may be more harmful to thaw it and let it refreeze than to await arrival at the treatment area for thawing.
3. Rapid rewarming is essential. Do not rub the injured part as friction may cause further damage. Use lukewarm water or use warmed blankets. Within about 30 minutes, sensation may return to the part, which may become red, swollen, and painful.
4. When the part is warm, keep it dry and clean. If blisters appear, use sterile dressings.
