Foram encontradas 125 questões.
The food that everyone loves
Several studies in recent years have found that chocolate could be more beneficial than harmful. It can be bad for you if you overdo it: in this case, it can trigger migraines or digestive disorders, besides making you fat. Doctors and nutritionists recommend that daily consumption should not exceed 50 grams. The good thing about chocolate, especially dark chocolate, is that it has a high level of substances called flavonoids, which help slow the aging process and help reduce the risk of heart disease. ________ being delicious, chocolate is nutritious because it contains vitamins A, B, C, D and E, and minerals – such as iron and phosphorus.
According to the text, dark chocolate
Provas
Questão presente nas seguintes provas
Facebook makes users envious and dissatisfied
In a recent research study conducted by two German universities, Facebook members answered questions about their own feelings after using the platform. More than one-third of the respondents reported predominantly negative feelings, such as frustration. The researchers identified that envying their seemingly more successful ‘Facebook friends’ is the major reason for this result. In general, online social networks allow users brand-new insights on relevant others, which would be _______ more difficult to obtain offline.
Fill in the blank with the appropriate word to complete the text.
Provas
Questão presente nas seguintes provas
Sejam as matrizes !$ A = \begin{bmatrix} 1 & 1 \\ 0 & -1 \end{bmatrix} !$ e !$ B = \begin{bmatrix} -1 & 2 \\ 1 & 0 \end{bmatrix} !$. A soma dos elementos de A.B é
Provas
Questão presente nas seguintes provas
Para que exista a função f(x) = log (x – m), é necessário que x seja
Provas
Questão presente nas seguintes provas
English ghost stories
Many of Britain’s ancient castles have ghosts. One of the most famous “haunted castles” in England is actually the Tower of London. During the Tower’s long history, many men and women were thrown into its dark dungeons, or executed outside its gates. _______ the most famous was Lady Jane Grey, Queen of England, who was beheaded outside the Tower on 19th July 1554. Since then, it is said that the ghost of Lady Jane Grey wanders through the rooms and corridors of the Tower of London. This is just one of Britain’s well-known ghosts; but there are lots of ghosts too who aren’t quite as famous.
GLOSSARY
dungeons – masmorras, prisões, calabouços
dungeons – masmorras, prisões, calabouços
The last two lines in the text reveal that
Provas
Questão presente nas seguintes provas
The men who guard the Queen
If you’ve ______ been to London, you’ve probably seen them: they are the soldiers in bright red jackets or shining helmets who stand outside Buckingham Palace. They are men who can stand absolutely still, even when tourists tell them jokes, touch them, push them, or try to make them move. They may look identical and even march like robots, but they are in fact some of the besttrained soldiers in the British army. Some people are surprised to learn that the guns that the soldiers carry are not just for show: they are loaded!
According to the text, the soldiers who guard the Queen
Provas
Questão presente nas seguintes provas
Considere quatro capacitores ligados em paralelo, !$ C_1 = 2,2 μF, C_2 = 2,7 μF, C_3 = 3,9 μF e C_4 = 4,7 μF !$. Nesse caso, a capacitância equivalente dessa associação é ___ μF.
Provas
Questão presente nas seguintes provas
Um espelho côncavo conjuga uma imagem virtual situada a 20 cm do espelho. Sabendo que a distância entre o objeto e a imagem conjugada é de 30 cm, qual a distância focal do espelho, em cm?
Provas
Questão presente nas seguintes provas
A distância do ponto (3, 1) à reta cuja equação geral é !$ 2x – 2y + 2 = 0 !$ é
Provas
Questão presente nas seguintes provas
In “I enjoy dancing every Saturday.”, the underlined verb is closest in meaning to
Provas
Questão presente nas seguintes provas
Cadernos
Caderno Container