本题目来源于试卷: SL Topic C3.2 Defence against disease，类别为 IB生物学
[问答题]
a. Describe the relationk80r 7 vjsg jc(+sng:fship betqn7ka hy39f-ya nefuf6* mmw./e/xl6ween the incidence of measles infections and the percl n .amwxq6f /e36yf9nk*mh7-a/uyfeentage of the population immunised.
参考答案: As the percentage of children vaccinated increases, the incidence of measles decreases.
There is a negative correlation.
本题详细解析:
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