完全随机设计资料多个样本均数的比较时，若处理无作用，则方差分析的F值在理论上应等于（）
A.-1
B.0
C.1
D.∞
E.任意值
参考答案：C
George couldn’t remember when he first met Mr. Anderson, but he was sure it was ___ Sunday because everybody was at _____ church.
A．/; the
B．the; /
C．a; /
D．/; a
请用所给词的正确形式填空.。
1．How_________ （be）Helen?
2．_________ （She）name is Jane．She is my friend．
3．Hello，_________ （me）name is Xiaomi．
4．His _________ （one）name is Tony．
5．Please_________ （call）685-6034．
