下列属于不相关关系的是()
A.相关系数为-1
B.相关系数为0
C.相关系数为1
D.相关系数为0.7
参考答案:B
下列哪一项不是戒严的执行机构
A.人民警察
B.人民武装警察
C.武装民兵
D.人民解放军
— please look at these two pictures carefully.
— But I can't see _____? [ ]
A. anything different
B. something different
C. different something
D. different anything