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【简答题】
设某种保险丝熔化时间 (单位:秒),取 的样本,得样本均值和方差分别为 ,则 的置信度为95%的单侧置信区间上限为( )
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【单选题】There used to be a party on Saturday evenings in that school, ?
A.
was there
B.
used it
C.
didn’t there
D.
used there
【单选题】There used to be a tall tree in front of our classroom, ____? [ ]
A.
used there
B.
didn't there
C.
wasn't there
【单选题】There used to be a coffee shop next to your house , ?
A.
wasn’t there
B.
didn’t there
C.
wasn’t it
D.
didn’t it
【简答题】There used to be a bookshop here．（改为反意疑问句） There used to be a bookshop here． ________ ________?
【简答题】There used to be a term that was used to describe someone who drove their vehicles down the highway while staring at the scenery. These drivers just drove slowly, taking their own sweet time, as if th...
【单选题】中央一号文件指出，今明两年是全面建成小康社会的决胜期，“三农”领域有不少必须完成的硬任务。下列属于明后两年的硬任务的有： ①到2020年确保现行标准下农村贫困人口实现脱贫、贫困县全部摘帽、解决区域性整体贫困。 ②巩固和提高粮食生产能力，到2020年确保建成8亿亩高标准农田。 ③深入学习推广浙江“千村示范、万村整治”工程经验，确保到2020年实现农村人居环境阶段性明显改善。 ④加快推进宅基地使用权确...
A.
①②③
B.
①②④
C.
②③④
D.
①②③④
【简答题】In the 19th century, there used to be a model of how to be a good person. There are all these torrents of passion flowing through you. Your job, as captain of your soul, is to erect dams to keep these...
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【简答题】There used to be a bookshop here．（改为反意疑问句） There used to be a bookshop here． ________ ________?