Inside Out is a 2015 American 3D movie produced by Pixar and released by Walt Disney Pictures. It tells us an interesting story of emotions and is quite popular with both children and adults today. Here is some information for you.

    Director: Pete Docter

    Language: English

    Released on: June 19, 2015

    Main characters: a girl called Riley, five personified emotions—Joy, Sadness, Fear, Anger, and Disgust.

    Story: The girl called Riley was born in Minnesota and is a sunny and outgoing girl. In her mind, there live five personified emotions: Joy, Sadness, Fear, Disgust and Anger. Each has different work to do: Joy makes sure that the girl is happy, Fear keeps her safe, Anger keeps her life fair and Disgust stops her from being poisoned. They usually work together to help Riley enjoy the beautiful life. But Sadness is not sure about her work. She could do nothing but make Riley cry.

    When Riley turns eleven, her family moves to San Francisco because her father gets a new job there. The little girl has to live in a new place and get on with new classmates. Then something bad happens. Because of the working problem of the five emotions, Riley becomes difficult and often gets angry easily. Everyone is worried about that…

    How could they solve the problem? Go to the cinema and find the answer by yourself!

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请任意列举出我国五条主要纵向铁路线．

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① $\left(1+x\right)\left(1-\left|x\right|\right)>0$ ；② $\left(x+a\right)\left(ax-3a\right)\le 0$ ．