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Today's social environmental problems are becoming more and more serious, and the awareness of environmental protection is gradually fading in people's minds. In addition to the destruction of our actual actions, the environmental problems of the whole earth cannot be ignored. If we love our earth and our home, let us give a little strength to smile. Therefore, we designed this activity.Why do female reporters of the NPC and CPPCC like to wear red clothes so much? It is said that besides conforming to the atmosphere of the NPC and CPPCC, this actually has other historical origins. That is Wu Xiaoli./raise (raise your hand)8. Grounding ClampApart from the family stories that make people feel kind, many characters in "Suspicious Three Brothers" have lovely shortcomings. Basically, from them, the whole family can easily take their seats and find their own shadows. 　Now that a strong state machine has been written, the logic of this state machine is simple and meticulous. It seems that this code is designed impeccably and this program has no bugs. In fact, this kind of code has been written countless times. For example, to switch the class of a button alternately, like this example, a variable state is often used to record the current state of the button first, and when an event occurs, the next behavior is determined according to this state.