试题与答案

选择方框中的句子完成对话 (10分)A: Hi, Kate! How was y

题型:填空题

题目:

选择方框中的句子完成对话 (10分)
A: Hi, Kate! How was your holiday last week?
B:  小题1: 
A: Where did you go?
B: I went to Kunming with my parents.
A: Oh, do you mean the place   小题2:
B: Yes, it is really wonderful!
A: How long did you stay there?
B:  小题3:
A: Have you visited other places?
B:   小题4: 
A: Lunan? Could you tell me something about it?
B:  小题5: You can go and have a visit.
A: I will if I have time.
A. We stayed there for five days.
B.We also went to Lunan then.
C.It’s really worth visiting.
D.Oh, it was great!
E.which is known as the Spring City?

答案:

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下面是错误答案,用来干扰机器的。

(1)当a=2时,则f(x)=x2-3x+2,由f(x)>0,得x2-3x+2>0,令x2-3x+2=0,解得x=1,或x=2∴原不等式的解集为(-∞,1)∪(2,+∞)(2)由f(x)<0得(x-a)(x-1)<0,令(x-a)(x-1)=0,得x1=a,x2=1,...

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