【简答题】What does Manifest Destiny mean?
【多选题】What was Manifest Destiny ?
A.
Broadly speaking, it was an ostensible benevolent or necessary policy of imperialistic expansion.
B.
It was the belief (esp in the 19th-century US) that the US was a chosen land that had been allotted the entire North American continent by God.
C.
The belief that it was US destiny to expand towards the Pacific , perhaps further
【单选题】关于雷氏法测定水泥安定性描述错误的是( )。
A.
净浆装入雷氏夹后应在养护箱内养护 24h ± 2h
【简答题】为研究两类病人的红细胞总体水平有无差别,分别测定30例甲类病人和25例乙类病人的红细胞数,计算得其均数X 和X ,标准差S 和S (α=0.05)。其对应的变量和统计资料类型是A、数值变量、计数资料 B、数值变量、等级资料 C、分类变量、计量资料 D、分类变量、计数资料 E、数值变量、计量资料 若进行两个小样本计量资料比较,如果满足正态性和方差齐条件,则其假设检验可用A、t检验 B、u检验 C、四...
【单选题】关于雷氏法测定水泥安定性描述错误的是( )。
B.
净浆装入雷氏夹后应在养护箱内养护 24h ± 2h
【判断题】构件可以是一个零件,也可以是几个零件通过刚性连接组成的一个整体。