Прочитайте текст и заполните пропуски подходящими по смыслу словами The first semiconductor 1_______...: ответ на тест 284242 - Английский язык

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The first semiconductor 1______________ was invented in 1948. It meant another important advance in the development of 2_____________. Semiconductors possess a number of valuable advantages over electron vacuum 3______________, - miniature dimensions and high reliability. Thus electronics 4______________ the study of electron motion in solids. The realm of electronics widened still more. This opened up other fields of application for electronics.

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The first semiconductor 1______________ was invented in 1948. It meant another important advance in the development of 2_____________. Semiconductors possess a number of valuable advantages over electron vacuum 3______________, - miniature dimensions and high reliability. Thus electronics 4______________ the study of electron motion in solids. The realm of electronics widened still more. This opened up other fields of application for electronics.

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A laser is a quantum electronic 1______________. It is a machine for making and concentrating light 2______________ into a very intense beam. The letters LASER stand for Light Amplification by Stimulated Emission of Radiation. The light made by a laser is much more intense than ordinary 3________________. With ordinary light, all the light waves are of different 4________________. With lasers, all the light waves are of the same length, and this increases the intensity.

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One of the three major classes of 1______ products are fats and oils. Along with carbohydrates and proteins, fats and oils 2________ the energy requirements of man and animals. Fats are usually 3_______ as solid or plastic at ordinary temperatures. Oils are 4_______ at room temperatures. Fats and oils in the diet serve to increase palatability and enchance the flavour of foods.

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The two 1 _______ groups are animal fats and vegetable oils. Butter is a special
2 _______ product from milk. The vegetable 3 _______ are pressed or extracted from a variety of plant seeds. Of primary importance as sources of edible oils are
4 _______, sunflower, cotton seed, corn germ, olives, etc.

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Eggs are versatile, easy to use, easy to digest and most people like them. Store them in a cool place, larder or refrigerator. Brown or white eggs? The answer is that it does not matter, the 1______ is only in the eye of the 2_______. In America they pay extra for 3________ white ones, the British do the same for dark brown. Boil them, 4________ them, fry them with bacon, make an omelet, make mayonnaise.