of infection involved in the old practices of direct application.
325- We can infer from the passage that such diseases as dysentery and cholera are
common in many parts of the tropics ------- .
A) though excellent sanitary facilities have been supplied
B) since these are examples of diseases that cannot be prevented
C) even though the villagers have been taught how to deal with epidemics
D) but more in the towns than in rural areas
E) owing to the lack of basic sanitary conditions
326- The author implies that the provision of adequate toilet facilities will not prevent
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