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Вопрос по английскому языку:
_____ your mother a good cook?
Does, can, is-
Автор:
jaylan
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Вопрос по английскому языку:
ООООчень срочно нужно перевести, пожалуйста
Rubber
Natural rubber is an elastic substance found as milky, dispersion …many, species of plants. Synthetic rubbers are highly polymeric substances manufactured from a wide range of chemical compounds. Both synthetical and natural rubber have in common the ability to undergo nearly reversible, highly elastic deformation.
In 1960, world wide use of rubber was divided nearly equally between natural product (about 2 million .tons) and synthetic rubber (about 1.8 million tons).
Natural rubber being an extremely valuable substance, many other naturally occurring compounds are closely related to it chemically. The basic building block for natural rubber as well аs other polyisoprenoids is acetic acid. Natural rubber was first obtained from wild trees in Brazil.
The physical and chemical properties of natural rubber are fixed by biological factors. In synthetic rubber a much greater variation of properties can be realized. The chemical properties of rubber are of paramount importance.
Vulcanization is a process used to make raw rubber useful. It decreases sensitivity to extremes of temperature, confers resistance to flow under stress and stabilizes rubbers valuable properties. Chemically, vulcanization creates strong bonds between the long linear molecules of the rubbery polymer. It fixes efficiently the molecules position with respect to one another and prevents their slippage under stress.-
Ответов: 1
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1 год назад
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Вопрос по английскому языку:
Пожалуйста!Составте предложения со словами: Stop revising, go out, tell a lie, Make an excuse, Make a plan, Take a break, Take offence, Give a call, Have a word. (НА АНГЛИЙСКОМ) Пожалуйста незамудрённые и не из переводчика!!!-
Ответов: 1
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1 год назад
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Вопрос по английскому языку:
пожалуйсто Помогите буду очень благодарна)
Закончите предложения заполнив пропуски соответствующими формами глагола to have в Present simple (has,have) или Past simple (had). Преведите на русский предложения.
1. I.....some trouble with my teeth last summer
2. We ............lectures and seminars every day but Saturday and Sunday
3. Oxford and Cambridge Universities ......a tutorial system of teaching
4. They..... the exam in mathematics last week
5. She..... a very pleasant voice
6. I......my breakfast at 8 o'clock today.Разделите
глаголы на 2 группы по типу образования Past Simple (правильные
и неправильные ) Укажите для каждого из них форму Past Simple (вторая форма) и Participle 2 (третья форма)To work, to translate, to come, to write, to meet, to teach, to consist ,
to examine, to think, to begin, to become, to apply, to include, to read, tp
go, to take, to discuss, to know, to do, to make, to test, to put, to use, to
occur, to decide, to give, to feel, to complete, to fall, to attend, to speak,
to find, to tell, to stay, to see, to hear.
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Ответов: 1
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1 год назад
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Вопрос по английскому языку:
Fill in the correct form of the verbs in brackets.
1.When (be) the last time you....(tidy) your room?
2.They (go) to Malta last month.
3,Yesterday we (cut) the grass,then we (wash) the car.
4.When we (go) to Europe last year we (drive) through France and Italy.
5.They (not/play) my favourite song at the concert yesterday.
6.The last time I (have) a haircut was two weeks ago.
7.My sister (make) a beautiful cake yesterday and I (cook) dinner.
8.Sally (not/visit) her grandparents last Christmas,so she (write) them
a letter.
9.Yesterday we (take) the camera with us, but we (not/take) any pictures.
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Ответов: 2
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1 год назад
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