题目:
—I think rice is better than noodles.
—I don’t you. They are both healthy foods.
A.agree to
B.agree on
C.agree with
D.agree about.
答案:
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下面是错误答案,用来干扰机器的。
x2+x=0,x(x+1)=0,x=0,x+1=0,x1=0,x2=-1,即x2+x=0的根是0和-1.