Вопрос № 223770 - Английский язык

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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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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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A brick is best described as “a building unit”. It may be made of burnt clay, of concrete, of mortar or of a composition of sawdust and other materials; in shape it is a rectangular solid and its weight is from 61/2 to 9 lb.
The shape and convenient size of a brick enables a man to grip it with an easy confidence and, because of this, brick-building has been popular for many hundreds of years. The hand of the average man is large enough to take a brick and he is able to handle more than 500 bricks in an eight-hour working day.

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A man, who has been an apprentice for some years in a building trade and has therefore enough skill to be considered a skilled worker at his trade, is called tradesman or craftsman.
He may be a carpenter-and-joiner, bricklayer, mason, slater-and-tiler, plumber, electrician, house painter, glazier, floor-and-wall tiler, paper-hanger, steeplejack, hot water fitter and so on.

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In the North of Moscow, and visible for miles around, rises the giant reinforced tower of Moscow’s TV centre. The tower was built in 1968 to a design by D.Burdin, M.Shkud and L.Shchipakin. Altogether 533-m high, the TV tower has an observation platform and a restaurant at the height of 328 metres. The restaurant revolves slowly round the tower and offers a splendid circular view of Moscow. Despite its enormous size the tower seems amazingly light. It replaced the old iron-girder tower in Shabolovka Street, built by the engineer I.Shukhov. Yet, unlike its predecessor, this TV tower does not play a purely functional role but is at the same time a most important architectural landmark. The multistory building of the TV centre stands alongside the tower.

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Nowadays plastics can be applied to almost every branch of building, from the laying of foundation to the final coat of paint.
A lot of decorative plastics now available has brought about a revolution in interior and exterior design. But plastics are used now not only for decoration. These materials are sufficiently rigid to stand on their own without any support. They can be worked with ordinary builders’ tools.