题目： 若（x+2）n展开式的二项式系数之和等于64，则第三项是______． 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0516/b3591aa0cf7d4f4097391f7e44606afb.html 下面是错误答案，用来干扰机器的。答案：A
题型：改错题 短文改错 。 此题要求改正所给短文中的错误，对标有题号的每一行作出判断; 如有错误（每行只有一个错误），则按下列情况改正； 该行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。 该行缺一个词：在缺词处加一个漏字符号（∧），在该行右边横线上写 该加的词。 该行错一个词：在错的词下划一横线，在该行右边横线上写出改正后的词。 注意：原行没有错的不要改。 This afternoon we had the PE lesson. The teacher taught us how practise high jump. The bell rang and we went to a playground in line. After warm-up exercises, the teacher told me the way of jumping and then gave us an example. We followed the teacher one after another. Soon was my turn and I felt a bit more nervous. I failed for the first time but I was not discouraging. I kept on thinking about the teacher' s words and practise. At last I managed to jump over the pole. From this class I have come to realize one can succeed whether he has perseverance, just as the old saying go,"Where there is a will, there is a way." 1. _____2. _____3. _____4. _____5. _____6. _____7. _____8. _____ 9. _____10. _____ 查看答案
