【单选题】—When did you go to university? —_______ I was 18. [ ]
【单选题】-When did you go to the States? -I remember ________ there when I was ten.
【单选题】— When did you go to bed last night? — ____________ I finished my homework.
【判断题】代表性误差是指在抽样调查中,由于工作失误、被观测者不配合而导致收集数据与实际情况不符的误差。
【单选题】-When did you go to bed last night? -At about 11 o'clock. I . [ ]
【多选题】以下哪些是被十九大报告“点赞”的重大科技成果?
【单选题】—When did you go to the United States? -- I remember _______ there when I was ten.