- 单选题To prevent flooding in winter the water flowing from the dam is constantly（）by a computer.
- A 、graded
- B 、managed
- C 、conducted
- D 、monitored
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参考答案【正确答案：D】
monitor意思是“监测，监督”。译：为预防冬天发生水灾，大坝流出的水量一直受到计算机的监控。grade评分，评级；manage管理，经营；conduct引导，管理，指挥。
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