如图所示的物体的左视图为（　　）

当合作伙伴的想法不符合自己的想法时，你应该 （）

根据短文内容，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整，每空一词，每词限用一次。

    My name is Betty. I am twelve. I have some ____. We are middle school students. We are in Class Two, Grade Seven. This is Miss Green. She is an American teacher. She ____ us English. Her classes are very ____. We all like her.

    This is my new classroom. In the classroom you can see many ____ and chairs. A blackboard, a clock and a map ____ China are on the wall. On a desk, you can see some pencils. The red one is mine. The green one is ____.

    Look! You can see a ball under the desk. That's Kate's desk. The ball is____, too. This is my desk. You can see a ____on it.

$f\left(x\right)$是定义在$R$上的连续的偶函数，当$x<0$时，$\left(x^2+1\right)f\text{'}\left(x\right)+2xf\left(x\right)>0$，且$f\left(-2\right)=0$，则不等式$f\left(x\right)>0$的解集是（    ）