堆取料机具有以下（）三种工况操作。 堆料。 取料。 直通。
为了加大对经理层的监管力度，黄国率先在公司治理结构中引入（） 独立监察人。 独立核查人。 独立监事。 独立董事。
心理异常有哪些？
毛泽东对黄炎培老先生讲，中共已找到跳出“其兴也勃焉，其亡也忽焉”的历史周期率的新路，这条新路是（）。 社会主义民主建设。 社会主义法制建设。 社会主义文化建设。 社会主义经济建设。
A company is experiencing network delays. The network administrator discovers that a worker in a location far from the MDF has connected an old 10BASE-T switch with redundant links to the existing network. How could this action be responsible for the impaired network performance?（） Connecting a host to the old switch has created a broadcast storm.。 The 10BASE-T switch forced the entire network to be reduced to 10 Mbps operation.。 The old switch does not support VLANs, which has disabled the VLAN configuration of the entire the network.。 The old switch does not support full-duplex operation, effectively forcing half-duplex operation throughout the network.。 Spanning Tree Protocol has elected the old switch as the root bridge, creating inefficient data paths through the switched network.。
下列哪些现象中存在正反馈调节（）
