题目

根据短文（C）内容完成表格，每空一词。Leonardo da Vinci（莱奥纳多·达·芬奇）was a famous artist who was born in Italy. He was also a great inventor. Many of his inventions have become important in modern life. Although Leonardo hated war，he invented many different machines used for war. His most special invention was the machine gun，which was produced and used in war. Besides，Leonardo spent days thinking about how to save time. He developed ideas for something like cutting machines. Leonardo was a strange man. He never ate meat. That was very unusual in those t小谦在侨乡体育馆100m直道上跑步，第一次用8s跑了32m，第二次用4s跑了16m，第三次用13s跑了52m，则可以判断小谦一定是（ ）A.做匀速直线运动B.做变速直线运动C.做匀速圆周运动D.条件不足，无法确定运动类型