题型:问答题 ---How do your parents usually go to work?---My mother usually goes to work _________ bus while my father ________ a bike to work. A.takes, ridesB.take, byC.by, byD.by, rides 查看答案
题型:问答题 霍乱患者解除隔离的标准是()A.临床症状消失后7天,并隔天粪便培养1次,连续3次阴性B.临床症状消失后6天,并每天粪便培养1次,连续3次阴性C.临床症状消失后5天,并每天粪便培养1次,连续3次阴性D.临床症状消失后6天,并隔天粪便培养1次,连续3次阴性E.临床症状消失后6天,并隔天粪便培养1次,连续2次阴性 查看答案