题目

The winter holiday is coming. What are the students going to do during the winter holiday? We did a survey and this is what we learned. All students like the winter holiday because there is an important festival—the Spring Festival. During the Spring Festival, they are going to visit their friends and relatives. During the winter holiday most students say they are going to finish their homework first. After finishing homework, they can have a good time. They’re going to buy some new clothes and good food. Most students are going to watch TV with their families. Some are going to play compu 已知AB是球O的直径，其长为100 cm，则蚂蚁在球面上从A点爬行到B点的最短路程为 [　　] A．100 cm B．300 cm C．50π cm D．100π cm