Вопрос № 123951 - Английский язык

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Vitamins are special substances that the body needs, along with proteins, fats, carbohydrates and minerals. Vitamin A is needed for healthy eyes and is found in fish-liver 1_______, egg yolk, butter, green vegetables and fruit.
Vitamin D is needed for healthy bones and for protection against rickets. It is found in very small 2________ in egg, butter and fish. We get most of our vitamin D from the sun.
Vitamin C 3_______ against scurvy and is found in oranges, lemons, tomatoes and green vegetables.
Vitamin B is present in milk, eggs, liver. It is needed to strengthen our 4_______ system.

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Carbohydrates give energy. There are carbohydrates in bread, sugar, potatoes, pasta and rice.
Fats make you strong and give you energy. There are fats in meat, butter and cheese and oil.
Vitamins are important for your eyes, your skin, your hair and for other parts of your body. There are 13 types of vitamins (A,B,C and so on). There are vitamins in many types of food.

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Edward Jenner was English physician, the discoverer of vaccination. He was born at Berkley, Gloucestershire, on May 17, 1749. Jenner studied medicine in London at St George’s Hospital. He began practice in Berkeley in 1773 when he was 24 years old.
Edward Jenner liked to observe and investigate things ever since he was a boy. This led to the discovery of vaccination against smallpox. Today cases of smallpox are very rare because almost every baby in the world is vaccinated against this disease.
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Today cases of smallpox are very rare because almost every baby in the world _______.

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I _______ her recently.

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Engineering is putting knowledge of Nature to practical use. The end result of engineering is some physical thing: a machine, a tool, a gadget. Engineering is solving problems. It’s convenient to discuss engineering projects within the framework of five steps for solving problems: define the problem, identify possible solutions, select a solution, implement the solution, verify the solution.
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What is the end result of engineering?