一个测验经过多次测量所得的结果的一致性程度，成为测验的（）
A.信度
B.效度
C.区分度
D.难度
参考答案：A
.I decided to pay a visit to my former teacher as soon as I____.
A．finish what I did
B．finished what I did
C．would finish what Iwas doing
D．finished what I was doing
用双面尺进行水准测量，在某一测站上，黑面所测高差为+0.102m，红面所测高差为+0.203m，则该测站前视标尺的尺常数是（）
A.4687
B.4787
C.3015
D.3115
