工商行政管理机关作出下列哪些行政处罚决定之前，应告知当事人享有举行听证的权利（） ["A.责令企业停止广告业务","B.对公民作出没收非法财物金额超过3000元的处罚","C.对企业作出2万元罚款，并没收违法所得1万元的处罚","D.对个体工商户作出扣缴营业执照的处罚"]
调压设施是将输气管网的压力调节至下一级管网或用户所需的压力，并使调节后的燃气压力（）。 ["保持稳定","持续降低","持续升高","以上都不是"]
过以太网接收编码后的TS数据码流，解码后分配给（）显示屏进行显示。
电气第一种工作票终结后，应完成和注意哪些事项？
In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to（）. ["heel until the angle of loll is reached","list until the center of buoyancy is aligned vertically with the center of gravity","trim to the side opposite TCG until all moments are equal","decrease draft at the center of flotatio"]
说出分组交换网的四种用户接入方式？
