Предмет: Биология, автор: ludmilamlp

основная часть микроскопа?

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Автор ответа: kuleshova04029

0

это : объектив и окуляр

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Предмет: Физика, автор: dvich

Электротехника. тест на тему «Уравнения напряжений и коэффициент трансформации. Помогите пожалуйста!!!
1. Вторичная обмотка автотрансформатора:
а) наматывается поверх первичной;
б) является частью первичной обмотки;
в) имеет большее число витков, чем первичная;
г) не имеет электрической связи с первичной.
2. Автотрансформатор применяют в качестве устройства:
а) повышающего трансформатора;
б) развязывающего устройства;
в) регулятора постоянного напряжения;
8
г) регулятора переменного напряжения.
3. Измерительные трансформаторы предназначены:
а) для повышения напряжения и тока до значений, которые можно измерить стандартными электроизмерительными приборами;
б) для уменьшения напряжения и увеличения тока в тех же целях;
в) для повышения напряжения и уменьшения тока в тех же целях;
г) для понижения напряжения и тока в тех же целях.
4. Трансформатор тока работает в режиме:
а) холостого хода;
б) короткого замыкания;
в) согласованном;
г) оптимальном.
5. Трансформатор напряжения работает в режиме:
а) холостого хода;
б) короткого замыкания;
в) согласованном;
г) оптимальном.
6. Сварочный трансформатор работает в режиме:
а) холостого хода;
б) короткого замыкания;
в) согласованном;
г) оптимальном.

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10х = 15 ( х - 12 )

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Предмет: Английский язык, автор: 324dskjfeser

A. Choose the correct word to fill in the gaps.
1. lift/raise
a) Please, help me to ---- this sofa, it’s very heavy.
b) If you want to say something, don’t shout, just ---- your hand.
2. discovered/found out
a) After a few minutes of the lecture, the professor ---- that nobody was listening to him.
b) Who exactly ---- America? Christopher Columbus or Amerigo Vespucci?
3. work/job
a) I had been looking for a good ---- before I found one.
b) Sorry, can’t speak now, have a lot of ---- to do.
4. Geography/Earth Science
a) Mary wants to travel to all those countries she studies in her ----class.
b) Jason finds ---- fascinating because he learns a lot of things about the formation and history of our planet.
5. salary/wage
a) My ---- is not too good, I earn about a thousand euros per month.
b) Your ---- depends on how many pizzas you will deliver.
6. employer/employee
a) Mr Smith is extending his company, so he needs to hire more ----.
b) His ---- gave him the pay rise, now he gets 150 ponds more.

B. Fill in the missing words. There are three words you don’t need to use.
present sound bring out overtime freelancer move came brought up deadlines sloppy research change

7. Soon the brothers ---- to the conclusion that it was heat but not smoke that lifted things.
8. He was an army officer and ---- his son like a little soldier, hoping it would build his son’s character.
9. In this laboratory students perform scientific ----.
10. What I like about working as a ---- is that I don’t have to stay in the office.
11. The salary is good, the job is rewarding, the only problem is that it’s a bit hard for me to meet ----.
12. Her husband got a new job in the other city, so they had to ---- there.
13. The animals landed safe and ---- before the eyes of a huge crowd.
14. As his father is a military man, John has to ---- schools quite often.
15. Mary has worked ---- every day this week as it’s the busiest time in the company.

C. Put the verbs in brackets into the past perfect or the past perfect continuous.
16. A: Jack looked really tired yesterday.
B: No wonder, he (work) on the computer all night
17. A: Did Sally help you do the project?
B: No, by the time she came, we (finish) it already.
18. A: Elisa looked happy when I saw her.
B: It’s because she (get) her driving license
19. A: Ann was angry when I spilled milk over her dress.
B: Sure, because she (make) that dress herself for a week!
20. A: You looked puzzled in the underground..why?
B: Well...you see… I (not be) in the underground before, that was the first time.

D. Put the verbs into the past simple, past continuous, past perfect or past perfect continuous.
21. Peter (window shop) when he felt somebody’s hand in his pocket.
22. We overslept and when at last we arrived at the station, our train (leave) already.
23. She (try) to call him for an hour before she managed to get through to him.
24. He (not come) to us yesterday, but we hope he will come today.
25. When (you get) your first job?

E. Underline the correct item.
26. Who was on/in charge of building the Big Ben?
27. Nobody can show good results under/in pressure.
28. While/As soon as he saw the man, he immediately recognized him.
29. After the university she made a career by/in law.
30. In/At the age of 5 Mozart could play the musical instrument brilliantly.
31. Before/When Leonardo Da Vinci had a bright idea, he wrote it down in his notebook.
32. Mari Curie died by/of radioactive poisoning.
33. This job brings him about/in enough money to get by.
34. In/At the end of his report he thanked everyone for the attention.
35. While/As soon as he was working, he often glanced at the clock.

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в каких целях правительство Петра 1 содействовало развитию мануфактур

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Как вы думаете, почему Александр 2 так упорно добивался, чтобы просьба об отмене крепостного права исходила от помещиков?

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