办理密码挂失撤销时允许持卡人连续验证()次原密码,如原密码正确,立即为持卡人办理密码挂失撤销手续,如不成功则不能办理。
A、4
B、3
C、0
D、1
参考答案:B
物资经济管理研究的范围是狭义上的物资,即物资总称中生产资料部分。
Many questions________ in today's maths class, and most of them are very difficult. [ ]
A. came up
B. raised
C. rose
D. was come up