题目

匀速圆周运动是（     ）                                                                         A． 匀速运动            B． 匀加速运动    C． 加速度不变的曲线运动       D． 加速度不断变化的曲线运动                                                                                                                            My little brother is looking forward _______ to see the 2012 Olympic Games in London . A. to taking      B. to be taken      C. being taken      D. to being taken