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19,752 câu hỏi

The author mentions that all of the following are aware of quantities in some ways EXCEPT A. wasps B. Plovers C. caterpillars D. mice
14 1 tháng trước

The word “odd” refers to which of the following? A. numbers such as 1, 3, 5 and so on B. lucky numbers C. numbers such as 2, 4, 6 and so on D. unusual numbers
14 1 tháng trước

The word “surreptitiously” is closest in meaning to A. quickly B. occasionally C. stubbornly D. secretly
12 1 tháng trước

Why does the author refer to Gilbert White‟s book in line 2? A. To indicate that more research is needed in this field B. To show how attitudes have changed since1786. C. To provide eviden
12 1 tháng trước

What is the main idea of this passage? A. Although animals may be aware of quantities, they cannot actually count. B. Of all animals, dogs and horses can count best. C. Careful training is
13 1 tháng trước

According to paragraph 4, which property of electrons is responsible for chemical bonding? A. Their ability to break free of their atom during a collision B. Their electromagnetic attracti
11 1 tháng trước

According to the passage, all of the following are true of electrons EXCEPT A. Their energy levels are fixed and unchanging. B. They are kept in orbit by electromagnetic attraction C. The
12 1 tháng trước

According to paragraph 3, when does an atom produce light? A. When it has more electrons than its electron shells can hold B. When an electron drops back to its original electron shell C.
12 1 tháng trước

The phrase one another in paragraph 3 refers to A. Particles B. Electrical charges C. Electrons D. Atoms
12 1 tháng trước

According to the information in paragraph 2, what will happen if an atom has more neutrons than protons? A. It will not have enough of a positive electrical charge to keep its electrons in o
12 1 tháng trước

The word stable in paragraph 2 is closet in meaning to A. Neutral B. Unchanging C. Heavy D. Equal
12 1 tháng trước

According to paragraph 2, an atom’s atomic number is determined by A. The sum of its protons and electrons. B. The different in the mass of its neutrons and protons. C. The strength of th
13 1 tháng trước

In paragraph 1, why does the author compare the structure of an atom to a solar system? A. To provide an explanation of atomic structure that will be easily understood. B. To show that the
14 1 tháng trước

One of Carver’s main concerns is most similar to which of the following present-day causes? A. Preventive medicine B. Recycling of used materials C. Preservation of old buildings D. Preve
12 1 tháng trước

Which of the following is NOT discussed in the passage as work done by Carver? A. Research on electricity B. Analysis of plant parts C. Invention of new products D. Research on plant dise
11 1 tháng trước

Why does the author mention Thomas Edison’s offer to Carver? A. To illustrate one of Carver’s many opportunities B. To portray the wealth of one of Carver’s competitors C. To contrast Ed
12 1 tháng trước

The phrase “getting credit” in paragraph 3 can be best replaced with A. taking responsibility B. earning money C. winning praise D. advertising
17 1 tháng trước

According to the passage, chemurgical can be defined as the A. combination of chemistry and metallurgy B. research on chemistry of the soil C. study of the relationship between sunlight a
14 1 tháng trước

The word “step” in paragraph 1 could best be replaced with A. footprint B. action C. scale D. stair
12 1 tháng trước

With what topic is the passage mainly concerned? A. The work and career of George Washington Carver. B. The research conducted at Tuskegee Institute C. The progress of the science of synt
12 1 tháng trước

What is the author's purpose in this passage? A. To urge biologists to solve the problem of surplus human population B. To conduct a survey of the biologist's role in society C. To advise
12 1 tháng trước

Which of the following is closest in meaning to the word "ramifications" in paragraph 4? A. effective techniques B. latest developments C. harmful consequences D. useful experiments
12 1 tháng trước

According to the passage, to save our planet, biologists should work A. with other social scientists B. accurately and objectively C. on social and political purposes D. harder and harder
12 1 tháng trước

The word "which" in paragraph 3 refers to __________. A. the waste products dumped into our environment B. serious environmental pollution C. activities of surplus human population D. a
13 1 tháng trước

The pronoun "they" in paragraph 2 refers to__________. A. possibilities for genetic deficiencies B. cases of genetic deficiencies C. discoveries concerning hereditary mechanisms D. effe
11 1 tháng trước

It is implied in the passage that genetic engineering__________. A. will change all human traits B. is no longer desirable C. is the most desirable for life D. may do us more harm than go
14 1 tháng trước

The pronoun "it" in paragraph 2 refers to__________. A. genetic engineering B. an accomplishment C. hereditary mechanism D. a reality
12 1 tháng trước

According to the passage, a modern scientist should be more concerned about__________. A. the consequences of his discoveries B. his basic research C. his manipulation of genes D. the dev
12 1 tháng trước

Which of the following is NOT given in the passage as one of the provisions of the Great Compromise? A. There would be only one national executive. B. The President would be elected by pop
11 1 tháng trước

The word “shrewd” is closest in meaning to A. practical B. unfair C. important D. clever
15 1 tháng trước

The phrase “this plan” refers to A. the Small State Plan B. a plan suggested by the national legislature C. the Large State Plan D. a compromise plan
12 1 tháng trước

According to the passage, in 1787 which of the following states had FEWEST people? A. Virginia B. Delaware C. New York D. New Jersey
11 1 tháng trước

It can be inferred from the passage that the Articles of Confederation A. were supported by a majority of the delegates at the Convention B. were revised and presented as the Large State P
10 1 tháng trước

According to the passage, how many states were represented at the Constitutional Convention? A. 12 B. 13 C. 14 D. 15
10 1 tháng trước

What is the main topic of the passage? A. James Madison’s plan to create a stable structure for the government of the United States B. A disagreement at the Constitutional Convention and

9 1 tháng trước

The word "dominant" is closest in meaning to A. imperious B. chief C. impotent D. strange
10 1 tháng trước

Which of the following conclusions is supported by the passage? A. Ocean life is highly adaptive. B. More attention needs to be paid to preserving ocean species and habitats. C. Ocean lif
9 1 tháng trước

Which of the following is NOT mentioned as an example of microscopic sea life? A. Sponges B. Coral C. Starfish D. Shrimp
8 1 tháng trước

The author argues that there is more diversity of life in the sea than in the rain forests because A. more phyla and classes of life are represented in the sea B. there are too many insec
10 1 tháng trước

The word "there" refers to A. the sea B. the rain forests C. a tree D. the Earth's surface
10 1 tháng trước

The passage suggests that most rain forest species are A. insects B. bacteria C. mammals D. birds
9 1 tháng trước

The word "bias" is closest in meaning to A. concern B. disadvantage C. attitude D. prejudice
9 1 tháng trước

Why does the author compare rain forests and coral reefs in the first paragraph? A. They are approximately the same size. B. They share many similar species. C. Most of their inhabitants r
10 1 tháng trước

According to the passage, the Ice Ages often brought about A. desert formation B. warmer climates C. broken valleys D. wetter weather
10 1 tháng trước

The words "the former" refer to A. Lake Bonneville B. Lake Lahontan C. the Great Salt Lake D. Pyramid Lake
11 1 tháng trước

Why does the author mention cottonwoods and willows? A. To demonstrate that certain trees require a little of water B. To give examples of trees that are able to survive in a difficult env
10 1 tháng trước

The word "it" refers to A. Pacific Ocean B. air C. west D. the Great Basin
11 1 tháng trước

The word "prevailing" is closest in meaning to A. most frequent B. occasional C. gentle D. most dangerous
10 1 tháng trước

According to the passage, what does the Great Basin lack? A. Snow B. Dry air C. Winds from the west D. Access to the ocean
10 1 tháng trước

What is the geographical relationship between the Basin and Range Province and the Great Basin? A. The Great Basin is west of the Basin and Range Province. B. The Great Basin is larger tha
10 1 tháng trước

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