Considere as seguintes matrizes: , a solução de C x B + A é:

Considere o diagrama na imagem abaixo:

De acordo com esse diagrama:

A representa o conjunto dos objetos vermelhos.

B representa o conjunto dos objetos na forma de quadrado.

C representa o conjunto dos objetos de tamanho pequeno.

Então, a região sombreada na imagem representa os objetos que possuem as características de:

Consider the following statements about the text, judging if they are true (T) or false (F).

( ) Pressing a placebo button does not bring us any benefits, as we cannot control over a specific system.

( ) Professor Lange proved that is psychologically better to do nothing than to do something.

( ) Even though it has no control over the system, pressing a button when crossing the street creates a sense of closeness to people around you.

The correct order of filling in the parenthesis, from the top to the bottom, is:

In the sentence “A crossing in central London had programmed intervals for red and green lights” (l.14-15), the underlined verbal locution is in the ________________. If we put it in the present perfect continuous, it would be written as ______________.

Mark the alternative that correctly and respectively fill in the blanks above.

Consider the fragment of the text and the following statements:

“A gaggle of commuters assembles inside and outside the train” (l.02).

I. ‘gaggle’ means, informally, a disorderly or noisy group of people.

II. ‘commuters’ designates people who travel some distance to work on a regular basis.

III. ‘assembles’ indicates a crowd that gather together in one place for a common purpose.

Which ones are correct?