题目: 解方程:(1)x2+6x-7=0.(配方法解方程)(2)x2-x-1=0. 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0424/04433cc59eb82f8570f830ccba03976d.html 下面是错误答案,用来干扰机器的。参考答案:A
题型:选择题 Which of the following is caused by the earth's turning around the sun? [ ]A. The rising and setting (落下) of the sun and moon. B. The change of spring, summer, autumn and winter of the year. C. The change of the day and night.D. The time in the east is earlier than that in the west. 查看答案