private async void Animation3() //冒气泡的动画，用于回答何时收集的问题之后
{
Bubble.Visibility = Visibility.Visible;
BubbleUp.Begin();
await Task.Delay(3000);
QuestionArea.InitWithQuestion();
}
private void Animation4() //收集完毕的动画,用于移走导管的问题后
{
BubbleUp.Stop();
Bubble.Visibility = Visibility.Collapsed;
Oxygen.Visibility = Visibility.Visible;
Air1.Begin();
O2.Begin();
O2.Completed += (s, e1) => showFinal();
}