Обчислити значення виразу 80 *2 у -3 степені -2 у другый степені

Выведите формулу газа, в котором омега(H)=20%, омега(C)=80%,Dвозд.(Г1)=1,035.

какова была аграрная программа декабристов?

задания:

1) Choose the suitable word:
   The authors belonged to the so-called 'beat literature', beat writers' or 'beat generation' were forerunners of the ... counterculture of the 1960.
a) Hippy;       b) Punk;      c) Gothic.

2) Choose grammatically correct variant:
a) Don't you know if you post a letter of complaint tonight they would respond in time?
b) Don't you know if you've posted a letter of complaint tonight they will respond in time?
c) Don't you know if you post a letter of complaint tonight they will respond in time?

3) Choose the right preposition:
       Did you know that Mary is engaged ... her former classmate?
a) with;      b) on;     c) to.

4) Which sentence is correct English?
a) I love the landscape in Scotland;
b) I love the countryside in Scotland;

c) I love the nature in Scotland.

5) Choose the proper statement:
       The object in English may be expressed by ...
a) a noun;      b) a verb;      c) a numeral.

6) Choose the right meaning of the idiom 'Monday Blues':
a) jazz songs;
b) blue suits people wear to work on Monday;

c) feeling depressed because it's Monday again.

7) Choose the proper spealling of a word which is used in folklore to describe a person who changes into a wolf:
a) wearwolf     b) wherewolf    c) werewolf     d) were wolf

8) Choose the right word to fill the gap in the sentence:

      When I cut mu head, I needed nine ...

a) fillings;    b) stitches;    c) slings;     d) crutches.

9) Who designed and co-ordinated the presentation performance at the opening caremony of  2012 Summer Olympic games in London?

a) James Hewitt;    b) David Bond;    c) Nick Pritchett;    d) Danny Boyle.

10)Complete the statement:

       John Betjeman was famous English ...
a) poet;     b) actor;     c) scientist;      d) architect.

11) Choose the proper variant:

Sir Edward William Elgar, 1st Baronet was a famous British ...

a) general of the Civil War;

b) painter;

c) composer;

d) member of the House of Lords during the Second World War.