题型:问答题 简答题 The children, _____ had played the whole day long, were worn out.A.all of whatB.all of themC.all of whomD.all of which 查看答案
题型:问答题 简答题 有关四日市哮喘的叙述哪一项是错误的()A.是日本的公害病B.是变态反应性疾病C.常常突然发生哮喘,很少有感冒,咳嗽等前期症状D.是花粉、灰尘、甲醛为主要变态原E.某些石油制品分解产物使机体产生变态反应 查看答案