坎贝尔和斯坦利认为有（）类新异变量与教育实验内在效度有关或称为内在效度的威胁因素。
A.六
B.七
C.八
D.九
参考答案：C
根据首字母填空（共5 小题；每小题1分，满分5分）
71. He ran across to the o________ side of the street.
72. We Chinese have friends t _____ the world.
73. They drew simple pictures or signs to r_________ things and ideas, and also the sounds of their language.
74. His situation is very c___________ , so no one is willing to get involved.
75. He feels c___________ of passing the examination.
以下都是金融服务业的发展趋势除了（）
A、工业合并
B、数字金融服务
C、纯网络公司比多种渠道公司发展迅速
D、全球趋势
