【多选题】【消耗次数：1】
可保利益的构成条件包括（ ）
①
A必须是确定的利益
②
B 必须是可以实现的利益
③
C 必须具有经济价值
④
D 必须是合法的
参考答案：
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【多选题】
确定直线回归方程必须满足的条件是?
①
现象之间存在着直接因果关系
②
现象之间存在着较密切的直线相关关系
③
相关系数必须等于1
④
两变量必须均属于随机变量
⑤
相关数列的项数必须有相应的数量
随机题目
【单选题】
A: How far is the airport from here? B: [填空].
①
You can take a taxi
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Ill fly to Paris
③
Its only six hundred dollars
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Its about thirty miles
【单选题】
A: Excuse me, how much is the dress? B: Its €100. [填空]
①
Which do you prefer?
②
Oh, no. Thats OK！
③
How do you like it?
④
Would you like to try it on?
【单选题】
A: Bring me the bill, please. B: [填空].
①
You are welcome
②
Ill hurry up
③
Please wait for a moment, sir
④
Be quick
【单选题】
A: We are going to have a housewarming party tonight. Would you like to join us? B: [填空].
①
I have no idea.
②
Im afraid not, because I have to visit my parents
③
No, I cant.
④
Thats all set
【单选题】
A: Excuse me, [填空]？ B: Certainly, Walk three blocks along this street, and then turn left. Walk another block, and youll find the cinema across the street. You cant miss it.
①
but will you please tell me where you live
②
but can you help me with the bag
③
but would you tell me how to find the cinema
④
but can you tell me the way to the cinema
【单选题】
A: Please help yourself to the fish. B: [填空].
①
No, I cant
②
Thanks, but I dont like fish
③
Sorry, I cant help
④
Well, fish dont suit for
【单选题】
A: Congratulations！You won the first prize in the English speech contest. B: [填空].
①
Yes, I beat the others
②
Thank you
③
No, no, I didnt do it well
④
Its a pleasure
【单选题】
A: Hows everything with you? B: [填空], and how are you?
①
Thanks
②
Dont mention it
③
Not too bad
④
Pretty fast
【单选题】
A: Will you be free tomorrow evening? B: [填空]
①
No，Ill be busy.
②
What is the matter?
③
Im sorry I wont be free then.
④
No，Ill have no time.
【单选题】
A: Have you ever been to Huangshan? B:[填空].
①
No. Twice
②
I went there twice
③
Yes. Twice
④
Yes. Ill go there next month