设X1,X2,…,Xn为来自总体X的简单随机样本,其中E(X)=μ,D(X)=σ2,令U=
,则ρUV=______.
参考答案:[*]
解析:[详解] [*]
读美洲地形图,完成填图任务。写出图上序号所代表的地理事物名称:
大洋:①__________②___________海湾:③___________河流:④____________高原:⑤________________ 山脉:⑥__________ 运河:⑦____________
What made me unhappy was ____ he shouted at me. [ ]
A. that
B. what
C. which
D. /