【单选题】数据库中对全部数据的整体逻辑结构的描述是( )。
【简答题】二、 用所给单词的适当形式填空 1 . She went to school on foot yesterday as ______ (usually). 2 . He refused ______ (take) the book yesterday. 3 . He drives as ______ (careful) as Tom. 4 . It’s ______ (help) for chil...
【单选题】下列各句中括号中的词语使用恰当的一组是()
A.
听到战友不幸遇难的消息,他(如丧考妣),悲痛万分。
B.
文学创作辅导材料汗牛充栋,而真正依靠这些辅导材料步入文学途径的却可谓是(寥若晨星)啊!
C.
矮桩水稻成熟期(参差不齐),不宜用机器统一收割。
D.
一个月后,他终于度过危险期,又一次(起死回生)。
【单选题】我国本土成立的第一家期货经纪公司是( )。
【判断题】在YBC的申请过程中,很多人看重的是资金资源而不是导师资源。()
【简答题】A.impressive , B.intelt, C. peered ,D.sip , E.spill , F.barely ,G.ignorant, 1 In my opinion, his academic work and his skill in sport are _______. 2 Be careful or you’ll _____ your drink down you...
【简答题】A.impressive , B.intelt, C. peered ,D.sip , E.spill , F.barely ,G.ignorant, 1 There was ____ enough room for two people. 2 Be careful or you’ll _____ your drink down your clothes. 3 He was comple...
【单选题】在数据库系统中,描述全部数据的整体逻辑结构的是()。
【单选题】关于正常产道,下列哪项是正确的
D.
骨盆轴的上段向下向后,中段向下,下段向下向前
【单选题】数据库中全部数据的整体逻辑结构的描述是 ——