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下列选项哪些是关系数据库表的特性?
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Section A.1.A) Oh, yes， pleaseB) I like it very much .C) Sit down please.D) Fine, And you?2.A) Take careB) My pleasureC) It’s greatD) This way，please.3.A) See you tomorrowB) OK, it doesn’t matterC) Sorry, our rooms are bookedD) Here is the room key4.A) Have a nice dayB) Yes, pleaseC) Don’t do itD) Let’s go5.A) Certainly. Is Friday OK?B) So long.C) Hurry upD) Mind steps6.A) Coffee, please.B ) I’m fine, thank you.C) Your telephone number, pleaseD) Yes, Here you are.7.A) Don’t worry.B) All rightC) Good luckD) Never mind
Section D.Volunteers are our heart and soul. Please come and help us build homes for _____(20) low-income families. There is no experience needed and we supply the _____(21).Just volunteer for a day, It’s fun, rewarding and you can learn some _____(22). If building isn’t your thing, come and volunteer for one of our events or _____(23). You must be _____(24) 14 years of age to volunteer and those 15 years and under must come with a parent. Come and sign up now to volunteer your time.
Section C.15.A) To order a mealB) To report a caseC) To ask or a sick leaveD) To book a hotel room16.A) Her passportB) Her smartphoneC) Her watchD) Her computer17.A) She has coughed a lotB) She has a high feverC) She has got a pain in the stomachD) She has got a bad cold18.A) This morningB) This afternoonC) Last nightD) Yesterday19.A)Take her blood pressureB) Give her some medicineC) Perform an operation on her at onceD) Send her to the emergency room
根据《2010年通则》的解释，FOB与FAS的主要区别在于（ ）。
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