USB成为个人计算机的标准接口,目前其有USB1、1规范和USB3、0规范。
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网银企业客户可自行定制限额设置、流程管理、账户授权限额等方式控制风险。
A. 正确
B. 错误
What is the purpose of the STP PortFast BPDU guard feature? ()
A. enforce the placement of the root bridge in the network
B. ensure that a port is transitioned to a forwarding state quickly if a BPDU is received
C. enforce the borders of an STP domain
D. ensure that any BPDUs received are forwarded into the STP domai
()选择硐室施工方法主要要考虑围岩的稳定性,断面大小和服务年限等因素。
A. 正确
B. 错误