中午，小张在教室里做作业没有回家吃饭，她也没有打电话告诉父母。晚上，小张放学回家，开始做作业，可是她的母亲一直在为中午小张未回家的事说个不停，这时小张应该（   ）

暑假期间，“欢乐中国行”中学生国际夏令营从北京出发，沿如图所示路线进行地理考察．考察游览路线依次经过的地理区域是（  ）

    Many children like watching TV．It's very interesting and they can see a lot and know many things about other people．They can also learn from the radio．But they can learn easily with TV．Why? Because they can hear and watch at the same time．But they can't watch anything from the radio(收音机)．TV helps to open children's mind(思想)．They can find better ways to do things．

    Many children watch TV only on Saturday and Sunday nights．They are busy from Monday to Friday．But some children watch TV every night．They go to bed very late．It's not good for their eyes and health.

已知椭圆$C:\frac{x^2}{a^2}+\frac{y^2}{b^2}=1\left(a>b>0\right)$，F₁，F₂为其左、右焦点，P为椭圆C上任一点，$△F_{1}P{F}_2$的重心为G，内心I，且有$\overrightarrow{IG}=\lambda \overrightarrow{F_1{F}_2}$（其中$\lambda$为实数），椭圆C的离心率e=（   ）