求教几道最新PREP的数学题目

ouyangkehai

以下是引用blue_sea826在2009-7-14 20:57:00的发言：

When 1000 children were inoculated with a certain vaccine, some developed inflammation at the site of the inoculation and some developed fever. How many children developed inflammation but not fever?

题目就说只接一种VACCINE

When 1000 children were inoculated with a certain vaccine, some developed inflammation at the site of the inoculation and some developed fever. How many children developed inflammation but not fever?

好不明白，请NN解答