下列不属于5-羟色胺功能下降表现出来的特点是（）。 ["应付冲突性事件能力低下","易冲动.攻击性强","易表达满足感和表现被动","避免学习"]
Which three IP multicast address related statements are true?（） ["Multicast addresses 224.0.0.13 and 224.0.0.22 are reserved link - local addresses used by PIMv2 and IGMPv3","Because they would map to overlapping IP multicast MAC addresses, multicast addresses 224.0.1.1 and 238.1.1.1 could not be used toget her","Multicast addresses 224.0.0.0 through 224.0.0.255 are always forwarded because they are transmitted with Time to Live (TTL) greater than 1","Multicast addresses 224.0.0.5 and 224.0.0.6 are source multicast addresses for OSPF routers","The a dministratively scoped multicast addresses 239.0.0.0 through 239.255.255.255 are similar in purpose to RFC 1918 private unicast addresses","Multicast address 224.0.1.1 has been reserved for the Network Time Protocol (NTP) by the IANA"]
双代号网络图能够图上清楚地表明计划的时间进程及各项工作的（）。 ["开始和完成时间","超前和拖后时间","速度和效率","实际进度偏差"]
冷暖是（）。 ["使人容易想起阳光、火焰、灯光之类有温暖感觉的色彩叫暖色，使人容易联想起冰雪、霜冻之类有寒冷感觉的色彩叫冷色","使人容易想起阳光、火焰、灯光之类有温暖感觉的复色叫暖色，使人容易联想起冰雪、霜冻之类有寒冷感觉的复色叫冷色","使人容易想起阳光、火焰、灯光之类有温暖感觉的原色叫暖色，使人容易联想起冰雪、霜冻之类有寒冷感觉的原色叫冷色","使人容易想起阳光、火焰、灯光之类有温暖感觉的色度叫暖色，使人容易联想起冰雪、霜冻之类有寒冷感觉的原色叫冷色"]
什么是操作过电压？
简述公司章程的作用。
