案防制度中严禁柜员代客户保管的物品有：（）
A.现金或存（单）折
B.票据
C.印鉴身份证原件或复印件
D.手机
参考答案：A, B, C
John is very lazy. He falls ______ behind in his studies. [ ]
A. very
B. far
C. more
D. still
在什么情况下立即停止电动机运行？
