【单选题】Joy enjoys ______ dancing ______ singing. [ ]
【单选题】某女28岁,妊娠16周初次产前检查时被诊断患有梅毒。护士回答该病人关于梅毒的问题,错误的是
【单选题】You may come to my house ____ this week ____ next week. A .neither; or B .from; to C .either; or D. either; nor
【单选题】Either the product ______the advertisement should be changed.