求出下面梯形的面积．

面积是____ $c{m}^2$

下表为11月11日部分城市日出、日落时间表。回答下列各题：

 按要求完成下列题目。                                                                                       

                                                                                       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，塞上胭脂凝夜紫。
                                                 半卷红旗临易水，霜重鼓寒声不起。报君黄金台上意，报携玉龙为君死。

    Over time I____(change) quite a lot. I could simplify difficult sums when I began as a calculating machine. After I was programmed by an____(operate), I could logically produce an answer quicker than any person. At that time it was considered a____(technology) revolution. In 1936, I could solve difficult problems as a universal machine. From then on, my memory has developed so much that I never forget anything I have been told. Since the 1970s, many new ____ (apply) have been found for me. For example, I have been sent to explore the moon. My goal is ____(provide) humans with a life of high quality.Daisy desired to help ____ (endanger) species of wildlife because a large number of animals are ____(die) out. One day, a ____ (fly) carpet took her to a distant land____she could find antelopes that gave fur to make sweaters. Then she met an elephant in Zimbabwe and was told that elephants used to be hunted ____ mercy. But now people know the importance of wildlife protection.