听短文，写出所缺部分，每空不超过两个单词
I think Christmas (圣诞节) is one of the happiest times of the year. Everyone has a smile on their face. It's such a(n) ____for kids. They can't wait to open their gifts and play with their____. It's a nice time for their parents too. They can ____with their family and relax. Let's not forget the true meaning of Christmas. It is not about ____ Christmas trees or the snowman. It's all about love for each other and ____around the world.
的导函数图象如图所示，则下面判断正确的是
B. 
C. 