2. 职称英语
  3. Original usage refers to rivers that ______ . [br] What do we learn about the un

Original usage refers to rivers that ______ . [br] What do we learn about the un

游客2024-06-14  43
问题 Original usage refers to rivers that ______ . [br] What do we learn about the untreated industrial chemical wastes from the passage?
选项 A、They can conserve the normal biological action of rivers.
B、They all react with water to increase the acidity of rivers.
C、They make the water corrosive enough to destroy living organisms.
D、There are no rules for concentrations of unquestionably toxic chemicals of drinking water.
答案 C
解析 该句中的Untreated industrial chemical wastes...many of the chemicals react with water to raise the acidity of rivers to a point where the water becomes corrosive enough to destroy living organisms. 指出大部分化学制品能够和水产生反应增加河水的酸度从而达到使水腐蚀的程度而杀死活的生物。[C]正是对此的同义转述，故为答案。
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