已知函数y=3-(x-m)(x-n),并且a,b是方程3-(x-m)(x-n)=0的两个根,则实数m,n,a,b的大小关系可能是( )
A:m<n<b<a
B:m<a<n<b
C:a<m<b<n
D:a<m<n<b
⑴ ____
⑵ ____
⑶ ____
⑷ ____
⑸ ____
A. One little teddy bear singing under the desk.
B. Two little dogs talking on the chairs.
C. Three little teddy bears jumping on the bed.
D. Jenny calls the doctor.
E. No more teddy bears playing on the bed.
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