题目

最新研制的磁悬浮列车以600km/h的速度匀速行驶，一列高铁以300km/h的速度匀速行驶，与高铁相比，磁悬浮列车（ ） A．一定运动更快                                          B．一定运动更远     C．运动时间一定更短                                   D．可能运动更慢 --I’ve bought a box of chocolates for our daughter.   ---Oh, how good a dad! But she doesn’t like sweet things,      that? A. Don’t you know              B. Haven’t you known  C. Didn’t you know              D. Hadn’t you known