一个包括40个题目的测验的信度为0.80,欲将信度提高到0.90,通过斯皮尔曼-布朗公式的导出公式计算出至少应增加()个题
A.40
B.60
C.100
D.50
参考答案:D
—What do you think of my idea?
—It's not good. Most of us are _____ you. [ ]
A. for
B. on
C. in
D. against
若大批量客户欠费停机或高额停机交清话费后超过4小时仍未开机的情况,且()达到紧急投诉的标准还是要按照紧急投诉流程处理。
A.数量;
B.重要程度;
C.紧急程度;
D.程度;