Did you enjoyed yourselves at the party yesterday?
A:have a good time
B:lose your temper
C:make up yourselves
Mother's Day is coming . I'm thinking about _____ .
生活中人们通常用两种方法来比较运动快慢,方法①是相同的路程比时间,请你举一实例:____;方法②是____.物理学用速度描述运动快慢,公式为____,此方法与上述方法____(填“①”或“②”)原理是相同的.