[单选] 奥斯卡奖设立于（）。

兰台 某保健食品在广告中表现可补充营养、化解儿童厌食问题，这是一种（） 悬疑式广告。 解决问题式广告。 证言式广告。 比喻式广告。 Which statement about vlan operation on cisco catalyst switches is true?（） when a packet is received from an 802.1Q trunk,the vlan id can be determined from the source MAC address table.。 unkown unicast frames are retransmitted only to the ports that belong to the same vlan。 ports between switches should be configured in access mode so that vlans can span across the ports。 broadcast and multicast frames are retransmitted to ports that are configured on different vlan.。 深度线索 新剑桥学派认为货币工资、直接成本、物价的螺旋上升是通货膨胀持续存在的主要原因。（） 奥斯卡奖设立于（）。