有一个经济特区被誉为“一夜崛起的城市”，它在下列哪一个省

如图，两个完全相同的三角尺ABC和DEF在直线l上滑动，可以添加一个条件，使四边形CBFE为菱形，下列选项中错误的是（　　）

 完成下列作图：

（1）如图1所示入射光线平行于主光轴，请画出通过凸透镜后的折射光线．

（2）如图2所示的物体A静止在斜面上，请画出物体A所受重力的示意图．

阅读下面的短文，根据短文内容完成句子。每空词数不限。

    This is a song millions of Americans will hear this New Year's Eve. It is called “Auld Lang Syne(《友谊地久天长》)”. It is the traditional music played during the New Year's celebration. Auld Lang Syne is an old Scottish poem. It tells about the need to remember old friends.

    The words “auld lang syne” means “old long since”. No one knows who wrote the poem first. However, a version (译本) by Scottish poet Robert Burns was published in 1796. The words and music we know today first appeared in a songbook three years later.

    The song is played in the United States mainly on New Year's Eve. The version you are hearing today is by the Washington Saxophone Quartet. As we end our program with “Auld Lang Syne”, I would like to wish all of our radio friends a very Happy New Year! This is Buddy Thomas.

$\frac{1}{4}$=$\frac{1}{\left( \right)}$+$\frac{1}{\left( \right)}$（两数的分母不相同）．