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发布时间:2024-04-07 23:07:54

[单项选择]According to the passage, initial improvement in brain function in Homo’s ancestors resulted at least partially from which of the following
A. the sharing of resources typical of hunter-gatherer groups to which Homo eventually came to belong
B. the freeing of Homo’s heat-sensitive brain from the temperature constraints that had kept its size in check
C. the availability of foods far denser in calories and nutrients than those previously available
D. a rise in Homo’s brain weight relative to his body weight
E. morphological solutions of environmental change developed by the robust proto-humans

更多"According to the passage, initial i"的相关试题:

[单项选择]

Passage Four
Initial voyages into space introduced questions scientists had never before considered. Could an astronaut swallow food in zero gravity To keep things simple, astronauts on the Project Mercury ate foods squeezed out of tubes. It was like serving them baby food in a toothpaste container.
But these early tube meals were flavorless, and astronauts dropped too many pounds. "We know that astronauts have lost weight in every American and Russian manned flight," wrote NASA scientists Malcolm Smith in 1969. "We don’t know why." Feeding people in space was not as easy as it looked.
Floating around in space isn’t as relaxing as it might sound. Astronauts expend a lot of energy and endure extreme stresses on their bodies. Their dietary requirements are therefore different from those of their gravity-bound counterparts on Earth. For example, they need extra calcium to compensate for bone loss. ’A low-
A. They had to be eaten from a bag.
B. They tasted better than they looked.
C. They could not make eating as easy as possible.
D. They were not nutritious enough for astronauts.

[单项选择]

Passage Three

According to the best historical and archaeological evidence, it is estimated that it took about 800 thousand to 1 million years for the earth's population to reach the 250 total which existed at the end of the first century 'after Christ. For some time after that, disease, famine, and war kept the population increase down to a fraction of 1 percent a year so that more than 15 centuries passed before the population reached 500 million. But in the next 250 years, up to 1850, the population of the world shot up to the 1 billion mark, and today it has reached 3 billion. It is predicted by United Nations investigators that in the next 35 years the population of the world will double.
When experts are asked what the most effective measure which overpopulation poses, they reply that at least three measur
A. estimates based on current population growth
B. references in literature and mythology
C. estimates based on previous population growth
D. written records and cultural remains
[填空题]According to the passage, diamonds are cherished by people because they are rarer.


[单项选择]According to the passage, how does telecommuting benefit management
A. It enables workers to work intensively without being disturbed by colleagues.
B. It can reduce the rush-hour congestion.
C. It can free workers from office.
D. It can stabilize the staff since they can better take care of the family.
[单项选择]Passage 2

According to the passage, which is NOT tree about chronic diseases a. It is estimated that seventy-five percent of the people will die from chronic diseases after ten years. b. There are more people killed by chronic diseases in China than in the US. c. China will spend more than five hundred thousand yuan on the chronic diseases in the next ten years. d. Russia also suffers from economic losses because of chronic diseases.
[单项选择]According to the passage, the optical anatomy of Bythograea thermydron’s acquires which of the following features as it grows from larva to an adult Ⅰ. A higher sensitivity to longer wavelengths of light Ⅱ. An enhanced ability to form images Ⅲ. A greater range of spectral absorbance
A. (A) Ⅰ only
B. (B) Ⅱ only
C. (C) Ⅰ and Ⅱ only
D. (D) Ⅰ and Ⅲ only
E. (E) Ⅰ,Ⅱ, and Ⅲ
[填空题]According to the passage, books and seminars can be as valuable as The organized Executive.

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