揽瓜阁逻辑做题小分队 第12天

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1.The ability to analyze genomes — sequences of DNA — has grown more and more sophisticated. Scientists are able to examine the biological past in finer detail and with greater accuracy. A new analysis of the genetic links between early humans and chimpanzees has led to a hypothesis that the two species diverged more recently than previous estimates indicated. This gives credence to a very startling new theory: the ancestors of humans and chimpanzees might have hybridized to produce the lineage from which modern humans eventually developed. What can be inferred from the statements above?

A Hybridized species combine the best of both lineages.

B Political and religious pressures will affect the course of future research.

C Future research will enable scientists to determine the exact characteristics of this hybrid ancestor of modern man.

D Earlier genome analysis established genetic links between early humans and chimpanzees.

E Human DNA is more complex than that of chimpanzees.

2. The restaurant business wastes more energy than any other industry in the United States. Nearly 80 percent of the $10 billion spent on energy by the restaurant industry each year is squandered by the use of inefficient equipment. At the same time, approximately 70 percent of restaurants in the United States are small businesses that are usually too cash poor to invest in energy-efficient technology. Which of the following statements draws the most reliable conclusion from the information above?

A The availability of energy-efficient equipment will reduce the energy costs of the restaurant industry by approximately 30 percent.

B No industry in the United States spends greater than $10 billion each year on energy.

C By using energy-efficient technology, a small restaurant will reduce its expenses by a greater percentage than will a large restaurant.

D Approximately $2 billion of the amount spent on energy each year by the restaurant industry is not squandered.

E The replacement of inefficient equipment represents the largest potential source of energy savings for the restaurant industry.

参考答案：

DE

速水愛媛

D E

CaryX

Mark一下！               

Blanche会努力

DD

Syvlia

DD

LouisTan

DD

Ethan_dai

D D

Ivory2020

同意！               

Leilanico

D B

Anmigo

de