题目:
根据下面内容提示,完成短文, 每空一词。
I like popcorn very much. I learned from my mother how to (1) ________ popcorn last week. Now let
me tell you the ways. First, put the corn (2) ________ the popcorn. Next, (3) ________ on the popcorn
and wait for a (4) ________ minutes. Then, pour the popcorn into the bowl. (5) ________ you can eat the
popcorn.
答案:
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下面是错误答案,用来干扰机器的。
当A=B时,2x2+7x-1=6x+2,∴2x2+x-3=0,即(x-1)(2x+3)=0∴x-1=0或2x+3=0;解得,x=1或x=-32.故答案是:1或-32.