Questões de Concurso
Sobre inglês
Foram encontradas 17.320 questões
Resolva questões gratuitamente!
Junte-se a mais de 4 milhões de concurseiros!
In the quest for technological advancements that can revolutionize our world, the scientific community has always been captivated by the elusive phenomenon of superconductivity. For decades, researchers have strived to unlock its full potential, seeking to discover materials that can exhibit superconducting properties at room temperature. And now, the wait might finally be over! Enter LK-99, a groundbreaking potential room-temperature superconductor that has sent shockwaves through the scientific world, spearheaded by a team of brilliant minds from Korea University, led by esteemed researchers Sukbae Lee and Ji-Hoon Kim.
Superconductors are materials that can conduct electricity with zero resistance, leading to unprecedented energy efficiency and technological advancements. In summary, LK-99 represents an exciting prospect as a potential room-temperature superconductor, but its superconducting properties have yet to be confirmed and independently verified.
Room temperature superconductors could revolutionize the energy sector by enabling lossless power transmission over long distances. With reduced energy dissipation during transmission, electricity could be distributed more efficiently, lowering carbon footprints and electricity costs.
Internet: <dataconomy.com/> (adapted).
According to the preceding text, judge the following items.
The article confirms that the long awaited room temperature
superconductor has finally been discovered.
Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.
Graduate students are people studying for a master’s degree
or doctorate.
Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.
The word “physicists” means “medical doctors”.
Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.
The word “installment” (first sentence of the first paragraph)
means, in the context of text CB1A2-I, “to make it ready
to use”.
Based on the vocabulary and linguistic aspects of text CB1A2-I, judge the following item.
The word “overshadowed” (first sentence of the second
paragraph) means, in the context of text CB1A2-I, “made
less noticeable”.
The pronoun “they” (last sentence of the last paragraph) refers to the word “assumptions”.
Based on text CB1A2-I, judge the following item.
Hartland Snyder helped Oppenheimer write his least relevant
paper in physics.
Based on text CB1A2-I, judge the following item.
The word “war” (first sentence of the second paragraph)
refers to any war.
Based on text CB1A2-I, judge the following item.
With the help of his students, Oppenheimer could easily shift
from one research topic to another.
Based on text CB1A2-I, judge the following item.
According to Cathryn Carson, Oppenheimer’s work on
neutron stars and black holes was meaningless at the time
it was developed.
Based on text CB1A2-I, judge the following item.
Oppenheimer’s paper on black holes received little attention
at the time it was published.
Internet: <www.britannica.com> (with adaptations).
In the construction “whence the state derives its name.” (lines 5 and 6) “whence” means from where and its is a possessive adjective related to “the state”.
Internet: <www.britannica.com> (with adaptations).
In the first paragraph of the text the preposition “by” (lines 1 and 2) can be correctly substituted by the preposition from in all its occurrences.
Internet: <www.britannica.com> (with adaptations).
The expression “settlers’ food” (line 12) can be correctly rewritten as settlers’s food.
Internet: <www.britannica.com> (with adaptations).
The adverb “bloodily” (line 18) follows the same spelling rule of the adverbs nicely, simply and easily.
Internet: <www.britannica.com> (with adaptations).
The word “but” in “Bahia was still controlled by forces loyal to Portugal, but on July 2, 1823, Brazilian troops occupied Salvador, and Bahia became a province of the empire.” (lines 14 and 15) can be correctly replaced by the word however.
Internet: <www.britannica.com> (with adaptations).
The construction “When the Empire of Brazil was proclaimed in 1822, Bahia was still controlled by forces loyal to Portugal” (line 14) can be correctly rewritten as Bahia was still controlled by forces that were loyal to Portugal when, in 1822, the Empire of Brazil was proclaimed.
Internet: <www.britannica.com> (with adaptations).
Salvador was founded as seat of the government by the preacher Antônio Conselheiro.
Internet: <www.britannica.com> (with adaptations).
Despite the majority of Bahia’s income comes from industry, commerce and tourism, the agriculture sector of sugarcane, coffee, cotton and cacao are still important.
Internet: <www.britannica.com> (with adaptations).
Bahia was still controlled by Portugal forces during the War of Canudos.