正确答案: B
-2
题目:一元二次方程x2+x-2=0 的两根之积是( )
解析:B
查看原题查看所有试题
学习资料的答案和解析:
[单选题]空气的成分中,氧气约占空气总体积的
21%
[单选题]28. Which is NOT true?
Some big companies in Sweden are selling things by teleshopping
解析:28.C【解析】此句如写成“The biggest company in Sweden is...”意思就会和文章中意思相同了。
[单选题]江阴市的气候类型属:
亚热带季风气候