Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами 1. digesti...: ответ на тест 439257 - Английский язык

Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами
1. digestible
2. indigestible
3. productivity
4. succulent

Выберите соответствия между английскими словами и выражениями и их русскими эквивалентами
1. digestible
2. indigestible
3. productivity
4. succulent

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An electric current is a flow of electricity. There are two kinds of electricity, positive and negative. Glass rubbed with silk is positively charged, ebonite rubbed with fur is negatively charged.
Like charges repel, unlike charges attract. The leaf electroscope is used to detect, distinguish and measure charges.
The ultimate particle of negative electricity is called the electron; that of positive is called the proton.

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This is a workshop. Two students are here. They are Sveta and Oleg. They are electricians. A toolboard is in the middle of the workshop. Many tools are on the toolboard. They are chisels, screwdrivers, a pair of pliers, a set of spanners, etc.
A safety-notice is above the toolboard. A bench is on left and a shelf is on the right. There are many nails, nuts and screws on the shelf. A hammer is not on the shelf, it is on the bench. Sveta is to the right of the bench. Oleg is on the other side of the workshop just opposite the toolboard.

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All engineering materials are divided into metals and  non-metals. Copper, cast iron, aluminium are examples of metals. Rubber, plastic and ceramics are examples of non-metals. Today different metals are widely used in machine-building industry.

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We can divide all metals into ferrous and non-ferrous. Steel and cast iron are in the group of ferrous metals. They are alloys of iron with carbon, manganese, silicon and other components.
Non-ferrous metals are metals and alloys the main component of which is not iron but some other element such as aluminium, copper and others. Some of the characteristics of non-ferrous metals are high electric and heat conductivity, high corrosion resistance, light weight and easiness of fabrication.