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Найти глаголы be и have и подписать 1) a radio receiver has two main functions to perform: firstly, it has to select the required radiation from all the other electromagnetic waves that are present over the surface of the earth, and secondly, it has to separate (or demodulate) the audio-frequency current from the radio-frequency carrier. 2) in the receiver these signals, which are close to each other in frequency, have to be amplified and separated. 3) the second function of a receiver is to demodulate the earner-wave; again, this operation can be performed by using an electronic valve. 4) they said that the separator contained two resonant circuits, one tuned to the frequency of the sound carrier-wave. 5) during this time the spot of light has covered the whole screen twice, but owing to the persistence of the fluorescent coating of the tube, the whole screen is illuminated.

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hophip2
hophip2
4,6(1 оценок)
1)  a radio receiver has two main functions to perform: firstly, it has to select the required radiation from all the other electromagnetic waves that are present over the surface of the earth, and secondly, it has to separate (or demodulate) the audio-frequency current from the radio-frequency carrier.2)  in the receiver these signals, which are close to each other in frequency, have to be amplified and separated.3)  the second function of a receiver is to demodulate the earner-wave; again, this operation can be performed by using an electronic valve.4)  they said that the separator contained two resonant circuits, one tuned to the frequency of the sound carrier-wave.5)  during this time the spot of light has covered the whole screen twice, but owing to the persistence of the fluorescent coating of the tube, the whole screen is illuminated. что значит: " и подписать"?
Trolololo09
Trolololo09
4,5(44 оценок)
Summer - a walk with friends. summer - a fun game in the sun.summer in the urals was hot, so i with my family often swam in the river. we picnicked and sunbathed.in rainy weather, i walked without an umbrella, so wet. i did it on purpose, it is only in the hot summer, you can enjoy the rain and not freeze.the most colorful memories of summer began to march. i and 8 persons were traveling in the mountains. we have conquered the mountain konzhak 1500 meters high. we looked at the stars every night, warming up by the fire and sleeping in tents.summer 2016 has passed too quickly. but it has become one of the best periods of my life.

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