题型:问答题 I have got used to staying up late at night I'm really tired and want to go to sleep early. [ ]A. unlessB. ifC. and D. or 查看答案
题型:问答题 世界卫生组织推荐的预防接种的4种疫苗是A.卡介苗、麻疹疫苗、百白破混合疫苗、脊髓灰质炎疫苗B.卡介苗、流感疫苗、白喉疫苗、脊髓灰质炎疫苗C.卡介苗、麻疹疫苗、伤寒疫苗、霍乱疫苗D.卡介苗、麻疹疫苗、风疹疫苗、脊髓灰质炎疫苗E.麻疹疫苗、流感疫苗、天花疫苗、脊髓灰质炎疫苗 查看答案