Questões de Concursos | OAB | Enem | Vestibular

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Dadas as afirmativas a respeito de compiladores,

I. Um compilador é classificado como just-in-time compiler quando o processo de compilação acontece apenas no momento em que o código é executado. Por essa razão, compiladores do tipo just-in-time compiler não são capazes de fazer otimizações no código final como parte do processo de compilação.

II. O código gerado por um compilador deve, necessariamente, ser semanticamente equivalente ao código fonte original.

III. O processo de compilação é composto por três passos obrigatórios: análise léxica, análise sintática e geração do código final. E, opcionalmente, podem ser executados mais dois passos: análise semântica e otimização de código.

IV. A etapa de análise léxica consiste em analisar o código fonte para produzir símbolos (tokens), que são processados em seguida na etapa de análise sintática, também conhecida como parsing.

verifica-se que estão corretas

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Choose the alternative that rewrites correctly the excerpt below, taken from the text “Cat Watch 2014: What’s it like being a cat?” published by the BBC News, using the past simple.

Cats are at a crucial point in their evolutionary journey as they transform from solitary hunters to domestic pets, a study by the BBC and the Royal Veterinary College has revealed.

Cats see the world in muted colours, making it easier for them to see movement without distractions. They also have large eyes for their size, allowing them to see well in low-level light.

However, they can’t focus on anything less than a foot away, so use their whiskers for detecting objects closer to their bodies.

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Which figure of speech is represented on the sentence:

"I think our country sinks beneath the yoke;

It weeps, it bleeds. IV. iii 39-40. (Macbeth, Shakespeare)

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Analyze the following items:
I – Pronouns are words we use in the place of a full sentence. II – We use he/him to refer to men, and she/her to refer to women. When we are not sure if we are talking about a man or a woman we use they/them. III – English clauses Always have a subject. If there is no other subject we use it or there. We cal this a dummy subject.

How many items are correct?

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Which sequence represents the correct use of subject and verb agreement for the sentence below:
I- The United Nations was founded in 1945. II- Politics is a subject taught in all schools. III- A number of teenagers is playing on the playground. IV- The number of people who own cars is increasing. V- Neither his brother nor his sister work in the hospital.

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Match the second column according to the first, which refers to the verb patterns of the underlined sentences:
First column: verb pattern 1- Verb followed by a direct object 2- Verb followed by a direct object and an indirect object 3- Verb with no object
Second column: sentence ( ) I would never have had that coffee if I’d known it would stop me sleeping. ( ) Her eyes shone in the darkness, reflecting the light from the candle. ( ) Ben quietly handed her the letter, looking rather nervous.
Check the correct alternative:

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Qual das alternativas abaixo contém uma oração subordinada substantiva?

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Consider the excerpt “It’s to the organization’s credit that it’s saying that it shouldn’t be tolerated”.

The subjunctive mood has been correctly used to rephrase it in all the sentences, EXCEPT

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Observe the sentences below.

I. An one-year-old child died in the hospital after falling into a pool on Tuesday;

II. We stay as a united group and we don't have any differences within the community;

III. He placed an wheel and tire in an old Russian sedan;

IV. No bond can match up the equation of a sister and a brother.

Observing the bold articles, identify the correct alternative.

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If you want to study French, you should start learn it right now.

The bold item should be corrected as: