[多选]
Refer to the exhibit.The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem？（）

A . Ensure that the Ethernet encapsulations match on the interconnected router and switch ports.
B . Ensure that cables A and B are straight-through cables.
C . Ensure cable A is plugged into a trunk port.
D . Ensure the switch has power.
E . Reboot all of the devices.
F . Reseat all cables.

哪项不属于工程造价咨询服务的对象（）投资方。监理方。项目业主。承包方。调查法是在科学方法论和教育评价理论的指导下，通过问卷、（）、（）等科学方式，有目的、有计划、系统地收集有关教育评价的信息与资料的方法。预制构件制作模具质量验收中，底模平整度的允许误差为（） ±1mm。 ±2mm。 ±3mm。 ±4mm。结构建模分（）建模两种方法数学和物理。数字和直观。参数化和平面（空间）图形化。平面和立体。造成炉膛超温的原因主要是由于（）一次风量大，油喷量大，雾化蒸汽量大。一次风量小，油喷量小，雾化蒸汽量大。一次风量小，油喷量大，雾化蒸汽量小。一次风量大，油喷量小，雾化蒸汽量小。

Refer to the exhibit.The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem？（）

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[多选] Refer to the exhibit.The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem？（）

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[多选]
Refer to the exhibit.The two connected ports on the switch are not turning orange or green. What would be the most effective steps to troubleshoot this physical layer problem？（）