在双绞线组网方式中,()是以太网的中心连接设备。
参考答案:集线器
Mike has put on so much weight this year that his mother has to________all his trousers to his measure. [ ]
A. let out
B. give away
C. bring in
D. lay out
对于进入报废程序的烟草专卖品,专卖内管部门应对报废烟草专卖品的()情况开展监管。
A、审批时间
B、实地存储
C、仓储数量
D、业务流程