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.

在-0.1，$-\frac{1}{2},1,\frac{1}{2}$这四个数中，最小的一个数是（  ）

依据达尔文进化论的观点，人类起源于（      ）

下列代数式的书写正确的是（　　）