当某同学从远处走向一面穿衣镜时，他在镜中的像的大小及像与人的距离的变化是(    )

一个基因表达载体的构建不包括 （　　）

完形填空

        It was my first college acting class. With great hesitation, sweating hands and an1 heart, I walked into the classroom. I had spent my entire life2 public speaking. But now here I was,3not only to learn how to speak like someone on4， but to become them entirely. Theater classes are 5 at many high schools and universities in the US. “Theater kids” are quite a different bunch who always seemed able to 6  a room with their personalities.

        7 it was only a beginner­level course, my college class was filled with students who seemed a8  fit for acting. They were confident, fun and9.The professor, a stout (胖的) woman with a permanent smile and gentle behavior，10just as well. She 11us each with a handshake and welcoming eyes. The class was held in a circular room with  12 situated around the edges. This allowed everyone in the room to have a(n)13 of whatever performance or lecture was  14 in the center.

       After our first­day introductions，each week we 15in a series of activities designed to help us find our own inner 16. We sang songs, danced to music，and recited 17 from our favorite short stories.

         The18 was eye­opening. I learned that anyone has the19  to act, and many of us already do in our daily life. In the end, I'm not  20that I would consider myself an actor. But I don't think I ever had more fun in a college class.

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阅读下面一首古诗，完成小题。
                                                                                                                                          雁门太守行
                                                                                                                                               李贺
                                                                                                                      黑云压城城欲摧，甲光向日金鳞开。
                                                                                                                      角声满天秋色里，塞上燕脂凝夜紫。
                                                                                                                      半卷红旗临易水，霜重鼓寒声不起。
                                                                                                                      报君黄金台上意，提携玉龙为君死。