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.
，该三角形平面与电场线平行，O为三条中线AE、BF、CD的交点。将一电荷量为的正点电荷从A点移动到C点，电场力做的功为；将该点电荷从C点移动到B点，克服电场力做功为，设C点电势为零。由上述信息通过计算或作图不能确定的是（ ）
