把抛物线y=x2向右平移1个单位,所得抛物线的函数表达式为 ( )
抄写下列句子。
①Time for music class.
②It's 8 o'clock .It's time for English class.
③Hurry up .It's time to go to school.
④It's 9:00 .It's time to go to bed.
若l,m 是两条不同的直线,m 垂直于平面α ,则“l⊥m ”是“l//α" 的 ( )