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

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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