小明和小兵用如图所示实验装置探究影响滑动摩擦力大小的因素.
阅读短文，判断正误。
I'm Fangfang. I live in a village. It's small but beautiful. Look! That is my house. There are some trees near it. Behind the house there's a big river. You can see boats on the river. Many ducks are beside the boats. How lovely! Oh, many flowers are among (在……之中）the trees. Let's get some for our teachers.
— Do you think I should wear an orange shirt today?
— Yes. orange can bring you good luck, it is good for your interview.
已知关于x的一元二次方程x2+x+m=0的一个实数根为1，那么它的另一个实数根是( )
