Results The knowledge rate of fifth grade primary school pupils for iodine deficiency disease was 97.3%.

结果五年级学生碘缺乏病防治知识知晓率为97.3%。

youdao

Results The knowledge rate of fifth grade primary school pupils for iodine deficiency disease was 97.3%.

结果五年级学生碘缺乏病防治知识知晓率为97.3%。

youdao