问题
单项选择题
A ball with a smooth surface made to roll on a very smooth surface would ______
A．remove its surface
B．meet some objects
C．roll a long distance
D．change its direction
答案
参考答案：C
解析：[分析] 细节题型。 见第一段第二句：If a ball is made to roll on a very smooth surface，it will roll a long distance unless something stops it or changes its direction．