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[Reading Comprehension]
试题详情
文章：
| Line | Resin is a plant secretion that hardens when |
| exposed to air; fossilized resin is called amber. | |
| Although Pliny in the first century recognized that | |
| amber was produced from “marrow discharged by | |
| (5) | trees,” amber has been widely misunderstood to be |
| a semiprecious gem and has even been described | |
| in mineralogy textbooks. Confusion also persists | |
| surrounding the term “resin,” which was defined | |
| before rigorous chemical analyses were available. | |
| (10) | Resin is often confused with gum, a substance |
| produced in plants in response to bacterial infections, | |
| and with sap, an aqueous solution transported | |
| through certain plant tissues. Resin differs from both | |
| gum and sap in that scientists have not determined a | |
| (15) | physiological function for resin. |
| In the 1950s, entomologists posited that resin | |
| may function to repel or attract insects. Fraenkel | |
| conjectured that plants initially produced resin in | |
| nonspecific chemical responses to insect attack | |
| (20) | and that, over time, plants evolved that produced |
| resin with specific repellent effects. But some insect | |
| species, he noted, might overcome the repellent | |
| effects, actually becoming attracted to the resin. | |
| This might induce the insects to feed on those | |
| (25) | plants or aid them in securing a breeding site. |
| Later researchers suggested that resin mediates | |
| the complex interdependence, or “coevolution,” of | |
| plants and insects over time. Such ideas led to the | |
| development of the specialized discipline of chemical | |
| (30) | ecology, which is concerned with the role of plant |
| chemicals in interactions with other organisms and | |
| with the evolution and ecology of plant antiherbivore | |
| chemistry (plants' chemical defenses against attack | |
| by herbivores such as insects). |
题目：
Of the following topics, which would be most likely to be studied within the discipline of chemical ecology as it is described in the passage?
选项:
A、banks have systematically raised their old fees and invented new ones that are harder and harder for consumers to avoid
B、banks are systematically raising their old fees and inventing new ones that become harder and harder for consumers to avoid
C、banks systematically raising old fees and inventing new ones make them harder and harder for consumers to avoid
D、as banks systematically raised their old fees and invented new ones, avoiding them becomes harder and harder for consumers
E、as banks have systematically raised their old fees and invented new ones, it is becoming harder and harder for consumers to avoid them
答案:
E
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