以下关于合同订立的描述不正确的是
Beinga________(high)motivatedlauguagelearner,hetakeseveryopportunitytoimprovehisEnglish
Itisnotabadmovie,butthereisnothing_(origin)aboutit.
质量分别为ma和mb(ma:≠mb),速度分别为Va和Vb(Va≠Vb)的两质点a和b,受到相同的冲量作用,则质点
一质点做匀速率圆周运动时,其()
Apersonisluckyifhiscareer________withhisinterestandhobby