原题
The introduction of sanitation practices in urban areas during the nineteenth century significantly improved public health. Innovations such as sew systems a clean wa supplies deve from t growing awar of the conne between po hygiene and ill , and reduced the spr of infectious diseases like cholera and typhoid. Public health campaigns, supported by local governments and medical professionals, educated communities on the importance of hygiene. These efforts were instrumental in decreasing mortality rates and enhancing quality of life.
参考答案：age nd ter loped he eness ction or ness ead
解题思路
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