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Since 1935 researchers have known that when laboratory rats and mice are fed a very low-calorie diet – 30 to 50 percent of £their normal intake – they live about 30 percent longer than their well-fed confreres, as long as they get sufficient nutrition.
– A locução verbal HAVE KNOWN indica uma noção de temporalidade referente a:
a) dois momentos no passado.
b) passado e futuro.
c) passado, exclusivamente.
d) passado e presente.
e) Passado particípio
Since 1935 researchers have known that when laboratory rats and mice are fed a very low-calorie diet – 30 to 50 percent of £their normal intake – they live about 30 percent longer than their well-fed confreres, as long as they get sufficient nutrition.
– A locução verbal HAVE KNOWN indica uma noção de temporalidade referente a:
a) dois momentos no passado.
b) passado e futuro.
c) passado, exclusivamente.
d) passado e presente.
e) Passado particípio
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Resposta:
d) passado e presente.
Explicação:
present perfect = infers that something that have happened in the past but still have influence on the present moment