Вопрос № 284176 - Английский язык

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It has been known for centuries that certain black, heavy stones have the property of attracting iron, this property being called magnetism. A body that exhibits magnetism is called a magnet. The two parts of a magnet that show the strongest magnetism are called the North pole and the South pole.

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How is a body that exhibits magnetism called?
It has been known for centuries that certain black, heavy stones have the property of attracting iron, this property being called magnetism. A body that exhibits magnetism is called a magnet. The two parts of a magnet that show the strongest magnetism are called the North pole and the South pole. Magnets not only affect ordinary iron, but they affect one another. When a pole of one magnet is brought towards a pole of the second magnet, they will repel if both are north poles or both are south poles, but they will attract if one is a north pole and the other a south pole.

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Yesterday from 4 till 6 o’clock Ann and Alice were working in the laboratory. They were studying different electrical devices and instruments. One of them, a multimeter, was on their demonstration table all the time.
The multimeter is used for measuring three types of electrical units, namely: voltage, resistance and current. This device has several scales, a needle, a function selector, two leads, a crocodile clip and a probe.

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     In algebra, letters are used to express the general properties of numbers.
     Representing one number by the letter a and another by the letter b, we can write the equality.
                                   a x b=b x a
or, more shortly, ab=ba.
     If no other sign is indicated, the multiplication sign is understood between any two letters written side by side.
     To represent numbers letters of the Latin alphabet are generally used.

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“Colorplast” factory in Rovigo (Italy) manufactures three main products: panels, window frames and door frames.
The rigid, extruded polyvinylchloride (PVC) panels are made in a large of sizes, suitable for every kind of use. They are very strong, indeformable and are extremely easy to assemble and disassemble. For this reason they are of particular interest to architects and builders.
The second group of “Colorplast” products are ready-to-mount window frames, made of rigid PVC. They are completely draught-proof, water-proof, fire-proof and sound absorbent, indeformable, easy to install, economic and do not require maintenance. Moreover, they are available with different types of openings in varying sizes and are designed to meet any specific requirement.
       Finally, “Colorplast” produces patented internal laminated plastic melamine doors. They are made up of laminated panels with noney-comb filling, finished with rigid PVC borders.

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International trade means there are more companies competing with each other to sell their products. This means lower prices, which is good for customers because they pay less and have more choice. Producers, however, make less profit. Multinational companies often look for ways to reduce their costs, for example, by manufacturing their products in countries where labour costs are cheap.