国开题库

国开题库

——?—Twice a week.

#A.How often do you use our company’s product#B.When did you buy our products#C.What did you buy in our company
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——?—That’s great!"

#A.What are you going to eat at the Mexican restaurant#B.When are you going to dinner at the Mexican restaurant#C.How about going to dinner at the Mexican restaurant tonight
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——?—It will take at least two weeks.

#A.How soon will you finish our annual report#B.When will you finish our annual report#C.How long have you finished our annual report
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——?—It will be held on the 3^rdfloor of Shakiraton Hotel.

#A.When will you give a speech#B.Do your speech still go on#C.What is the address of your speech
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——?— It costs us ten thousand dollars.

#A.How many does the printing of the annual report cost#B.What does the printing of the annual reportmake#C.How much does the printing of the annual report cost
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．重力相似模型中, 流量比尺等于几何比尺的（）次方。

#A.2.5#B.2#C.1.5#D.1
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．设一个关系为R(A,B,C,D,E)，它的最小函数依赖集为FD={A→B,A→C,D→E }，若要规范化为高一级的范式，则将得到（）个关系。

#A.1#B.2#C.3#D.4
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.请选择不符合econom? (N) recovery检索式的答案

#A.economic recovery#B.recovery of the economy#C.recovery from economic
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.鉴别叔丁醇和正丁醇应该选用的试剂是（）

#A.FeCla#B.AgNO/C2HOH#C.13.Br/CCl4#D.KMnO/H+
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.风湿热的发病与哪种致病菌关系密切：（）

#A.草绿色链球菌#B.A族溶血性链球菌#C.葡萄球菌#D.病毒
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