【单选题】集线器工作在OSI模型的物理层普通交换机工作在OSI模型的()层。
【单选题】幼虫主要经皮肤侵入,成虫寄生肠道的寄生虫是
【简答题】Dubai boasts(夸口) that it has just built a “new global landmark”---the Dubai Tower, which stands 512.1 meters high now and has just become the tallest building in the world. The Dubai Tower now surpass...
【单选题】________ shows that the economy of Dubai is tourist directed. ( )
A.
The booming of Dubai’s business industry.
B.
The record breaking commercial construction projects.
C.
Dubai’s diversity natural resources and wonderful scenery.
D.
Dubai’s luxurious life style.
【单选题】如果预期标的资产价格有较大的下跌可能,通过买进看跌期权持有标的资产空头和直接 卖出标的期货合约或融券卖出标的资产所需要的资金相比( )。
【多选题】2018 年 7 月 13 日,中共中央总书记习近平在会见中国国民党前主席连战率领的台湾各界人士参访团時,提出了“四个坚定不移”的号召。“四个坚定不移”是指( )。