Ecology, like economics, concerns itself with the movement of valuable ____ through a complex network of producers and consumers

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问题 Ecology, like economics, concerns itself with the movement of valuable ____ through a complex network of producers and consumers.

选项 A、commodities
B、dividends
C、communications
D、nutrients
E、artifacts

答案A

解析 - 方程等号:like像,同义重复。
- 强词和对应:economics指向空格,根据like取同,体现“和经济相关的”。commodity商品,dividend红利,communication交流,nutrient营养,artifact工艺品。根据producers and consumers(生产者和消费者)的关系,排除选项B。答案选A。
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