подскажите пожалуйста как сделать 17 задание
10-11 класс
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will Sonya go to school tomorrow?what will happen at football game next month?will father buy me a bike?will you go to the vacation next summer?
Другие вопросы из категории
1.My hamster eats only ............. gtass,
.............. vegetables and ............ bread.
2. What is ............ cleverst animal?
3. ............... elephant lives in .......... hot countries.
4. .............. rabbit doesn't eat ......... meat.
йста. Now look at the pictures again and talk about Rascal. Rescal likes burgers, but he doesn,t like chips. это второе задание
Читайте также
Ask questions in response to these :
пример : Susan is listening to musik.-What is Susan listening to ?
1) Timothy is going to school by bus.---How...................................?
2) My parents are discussing the TV programme.---What.....................?
3) Our teacher is telling us a funny story.Who......................?
4) Tom and Jerry are flying to Britain.Where..................?
помогите пожалуйста как можно быстрей.
Задайте 4 типа вопроса ко всему тексту:
1) общий вопрос;
2) специальный вопрос;
3) альтернативный;
4) разделительный;
PHYSICAL PROPERTIES OF PETROLEUM
The colour of petroleum varies from light yellow to red, while some very dark grades are opaque. The higher the specific gravity, the darker the oil.
The nature and composition of crude oil usually determines its odour. Unsaturated hydrocarbons, sulphur and certain nitrogen compounds are responsible for disagreeable odours. Crude petroleum from the USSR, Rumania and California has an aromatic odour. Pennsylvania petroleum has an agreeable gasoline-like odour. Other oils vary in odour depending on the quantity of light hydrocarbons present in the oil, and of the impurities present. The petroleum from South Texas and Mexico has a strong disagreeable odour, due to hydrogen sulphide and other sulphur compounds. Petroleum is lighter than water. The specific gravity is influenced by physical factors and by the chemical composition of the crude oil. It varies from 0.7684 to 0.992.
The viscosity, or the measure of the resistance to flow, is an important factor with lubricating oils. Crude petroleums are quite different in viscosity. Some are very mobile, while others, like Mexican crude, are quite viscid. Heavy petroleum in general is composed to a large extent of these hydrocarbons. The viscosity increases with the density. The viscosities of oils of the same specific gravity, but from different sources, are not always the same. This is due to the difference in chemical composition.
English people are fond ...... their traditions.