【简答题】( )和( )是关系模型必须满足的完整性约束条件,并称为关系的两个不变性,应该有关系系统自动支持;( )应用领域需要遵循的约束条件,体现了具体领域的语义约束 A.实体完整性 B. 参照完整性 C. 用户定义的完整性
【单选题】Questions 9-13 Do the following statements agree with the information given in the text? TRUE——if the information in the text agrees with the statement FALSE——if the information in the text contradict...
【简答题】如何处理好土地革命、武装斗争、农村革命根据地建设三者之间的关系?
【简答题】福建某公司向国外出口一批茶叶共450公吨,国外客户开来不可撤销信用证,信用证中的装运条款规定:“Shipment from Chinese:port to London in July,Pardal shipment prohibited.”我公司因货源不足,先于5月11日在厦门港将150公吨茶叶装“东方”轮,取得一套提单;该轮船又驶往广州港装了300公吨茶叶,5月28日取得有关提单。福建某公司然...
【单选题】Questions 9-13 Do the following statements agree with the information given in Reading Passage 1? TRUE——if the information in the text agrees with the statement FALSE——if the information in the text c...
【简答题】PLC输出点类型的有继电器、________ 和________ 。
【单选题】信用证条款:APPLICANT:XYZ COMPANY,BERLIN BENEFICIARY:ABC COMPANY,NANJING SHIPMENT FROM:NANJING FOR TRANSPORTATION TO:HAMBURG DOCUMENTS REQUIRED:FULL SET OF CLEAN B/L MADE OUT TO ORDER OF SHIPPER BLANK ENDOR...
A.
SHIPPER:GOOD FORTUNE COMPANY
B.
CONSIGNEE:TO ORDER OF SHIPPER
C.
NOTIFY PARTY:BEST FORWARDER COMPANY,HAMBURG
D.
PORT OF DISCHARGE:HAMBURG