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Вопрос № 223123 - Английский язык

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Sonar (Sound Navigation and Ranging) is employed to locate submerged enemy 1________________. Like radar it is an echo-ranging 2__________________. It operates in the following way - a ship 3________________ a sound wave into the water. Encounting an obstacle the wave is reflected back to the ship, which – since the speed of sound through water is known - determines its distance from the object from the time it took the echo to return. To create the original sound wave, the ship generates 4________________ signals in а transmitter; it then sends these to a transducer, positioned on its keel as deeply in the water as possible. The transducer converts the signals into sound and transmits them through the water.
Варианты ответов
  • sends
  • submarines
  • electrical
  • device
Тип вопроса: Вопрос на соотвествие
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Вопрос задал(а): Анонимный пользователь, 10 Ноябрь 2020 в 00:16
На вопрос ответил(а): Анастасия Степанова, 10 Ноябрь 2020 в 00:16

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Cars and airplanes can be very fast. Ships in the ocean are slower. Why is that? Mostly, it is because of the resistance of the water. Water is much more difficult to go through than air.
One idea was to design the hull (sides of a ship) to rise higher out of the water as the ship went faster. This was tried, but the ship could not go fast enough to make a smooth ride. It was finally decided that the whole ship must rise out of the water.
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Вопрос № 284261

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Most cars use water to cool the 1_______. Water flows from the radiator through a 2_______ of water passages and rubber 3_______. A water pump pushes the water round. This system is known a 4_______ system .
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Вопрос № 223124

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The 1________________ is basically a three-section device composed of two outside sections and a middle section. The two outside 2______________ are doped so that they are either P- or N-tуре, and the middle section is doped opposite to the outside sections. Transistors are 3_________________ as NPN or PNP according to the doping of the sections or elements. When the two outside sections are N-type 4_________________ and the middle section is a P-type, the transistor is an NPN-type. When the two outside sections are P-types and the middle is N-type, the transistor is a PNP-type.
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Вопрос № 223125

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Experts believe that some boys are spending so much time playing computer games and watching violent films that they are living in a fantasy world. When girls talk about using home computers, they often discuss different types of software that they use for learning. Boys simply talk about computer games. When 14-year-old girls were asked what they would like to do in the future, they mentioned realistic jobs such as vet, teacher or doctor. The boys' answers were either very vague such as, "I just want to be happy and have lots of money" or unrealistic and they said things such as, "I want to be a fighter pilot”.
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What is the topic of girls’ discussion about using home computers?
They talk about computer games.
They watch violent films.
They talk about chats.
They discuss the software they use for learning.

Вопрос № 223126

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A lot of knowledge is a dangerous thing for addicts of the Internet. Information is becoming the drug of the new century.
The research, conducted among 1000 managers in Britain, America, Europe and the Far East shows that, as information sources such as the Internet and cable news channels proliferate, we are witnessing the rise of a generation of dataholics.
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What are people who use the Internet a lot called?
friends of the Internet
drugs of the Internet
enemies of the Internet
addicts of the Internet

Вопрос № 223127

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The quest for information can lead to stress. Almost two-thirds said their leisure time had been curtailed as a result of having to work late to cope with vast amounts of information; 70 percent reported loss of job satisfaction and tension with colleagues because of information overload.
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Why do you have to spend much leisure time to find the information you need?
Because you like looking for any information.
Because you want to find out the latest information on pop groups and facts for your homework.
Because you have a lot of time to spare.
Because there are vast amounts on information.
А еще можно заказать:
Лабораторные от 200 руб Контрольные от 200 руб Курсовые от 500 руб Дипломные от 3000 руб Отчет по практике от 500 руб