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【判断题】
在多元线性回归模型中,回归参数的最乘估计为A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】—Would you like to fish with me ? —I’m afraid I have no time . [ ]
A.
am free
B.
am no free
C.
am not free
D.
have no free
【单选题】I’d like ( ) your invitation, but I’m afraid I’m not free this weekend.
A.
to accept
B.
acceptting
【单选题】Sorry,I'm not free this evening.()dinner with Mike.
A.
I will have
B.
I'm having
C.
I have
【单选题】--- Are you free today, Mrs Green? --- I’m free every day ______ today.
A.
besides
B.
except
C.
but
D.
or
【单选题】If I _______ next week, I _______ the film with you. Actually, I can’t wait for that.
A.
have free; will see
B.
will be free; will see
C.
have free time; see
D.
am free; will see
【单选题】— _______ you _______ free tomorrow? — No. I _______ free the day after tomorrow. [ ]
A.
Are; going to; will
B.
Are; going to be; will
C.
Are; going to; will be
D.
Are; going to be; will be
【单选题】How can I get legal advice for free?()
A.
You can get nothing for free.
B.
To be frank, I don't know for sure.
C.
You can go to a law firm and ask about that.
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