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Give your opinion aloud · One fixed sample

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Compare your response with the reference. This sample does not assign an HSK score.

Explanation

Use the background card to give two benefits, one risk and your position. Distinguish different technologies instead of treating all biological treatment as genetic engineering or invasion. Chinese model: 我认为生物科技可以成为环保工具,但应有条件地使用。第一,特定微生物能辅助处理部分废水污染物;第二,规范处理厨余可以回收养分。不过,选用不合适的生物或管理不当,也可能产生新的环境风险。不同方法的风险并不相同,不能全部归为基因工程或外来物种问题。因此,应先评估适用范围,再进行监测,效果不佳或风险上升时及时调整。

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