经典力学只适用于解决 物体的运动问题,不能用来处理 物体的运动问题(填“高速”或者“低速”)经典力学只适用于 物体,而不适用于 物体。(填“宏观”或者“微观”)
I tried calling you your phone was out of service.( )
A.andB.butC.soD.or
﹣﹣﹣Look! They are .
﹣﹣﹣Yes. We are proud of them.( )
A.man scientistB.women scientists
C.woman scientistsD.man scientists
Either the students or the teacher him very well.( )
A.knowsB.to knowC.knowD.knew
exciting news it is! Beijing will hold 2022 Winter Olympic Games.( )
A.What anB.WhatC.HowD.How an
Hong Kong Disneyland is well worth .( )
A.to visitB.visitedC.visitD.visiting