单项选择题

下列清单项目中，（）是以m计量的项目。 A. 土工布 B. 石灰稳定土基层 C. 排水沟 D. 检查井升降

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单项选择题

Human activities can significantly impact evaporation, runoff, and infiltration. When water is used for cooling in power plants or to irrigate crops, the rate of evaporation is increased. According to this situation, we should stop irrigation or using industrial circulating cooling water in society to reduce the influence of human activities on hydrologic cycle.
A、正确
B、错误

钻石的415.5nm吸收线可以区分合成和辐照处理钻石
正确
错误

答案：错误