(单选题)14: 气体、蒸汽和气溶胶形态的环境污染物最易通过哪条途径进入人体内( )
A: 呼吸道
B: 消化道
C: 皮肤
D: 汗腺
E: 眼睛
1.(text)I.VocabularySkills(2points)Whichofthewordsbelowcontainaprefixwithanega...
1.(匹配题)I.Vocabularyskills(3points) Lookatthecolumnsbelow.Matcheachvocabular...
1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisT(true)orF...
1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisTrue(T)orF...
1.(完形填空题)1.ListentotheconversationanddecidewhetherthefollowingisTrue(T)orF...