【单选题】对两种不同的水稻品种A,B分别统计了8个地区的单位面积产量(单位:kg)品种A:86,87,56,93,84,93,75,79品种B:80,79,58,91,77,82,76,66那么两个水稻品种的单位面积产量之间是否有显著差异,置信区间是多少?
【单选题】(),也称摇青,是青茶特有的制造工序,是形成绿叶红边、香高浓醇的关键工序。
【单选题】---What do you think of James? ---Well, his father, James sharing his things with others.
【单选题】--How did you find James Cameron’s new film Avatar last night? --________________ A. Oh, wonderf
A.
23. --How did you find James Cameron’s new film Avatar last night? --________________ A. Oh, wonderful indeed!
B.
I went to the cinema alone.
【多选题】梁中只有一个集中力作用,在( )的情况下,集中力作用处具有这个梁中的最大挠度。
【判断题】因广告而进入商店的顾客购买其他产品被称为外溢销售。研究表明,很多情况下外溢销售额几乎与广告产品的销售额相等。
【多选题】In terms of their political administration, the thirteen colonies can be divided into three types. They were ________.
A.
the Plantation Colonies
B.
the Proprietary Colonies
D.
the Self-governing Colonies