为保证信息安全，旅店用来传输社会信息采集系统登记信息的电话号码要由（）登记授权。
A.工商部门
B.城管部门
C.公安机关
D.居委会
参考答案：C
中度脱水的临床表现，哪项是错误的
A．四肢厥冷，血压下降
B．精神萎靡或烦躁不安
C．皮肤干燥，弹性极差
D．眼窝及前囟明显凹陷
E．哭时泪少，尿量明显减少
A (71) is a data type whose major attributes are determined by the rules governing the insertion and deletion of its elements. The only element that can be deleted or removed is the one that was inserted most (72) . Such a structure is said to have a last-in/first-out (LIFO) behavior, or protocol.
A．stack
B．queues
C．pointer
D．record
