下列计算结果正确的是( )
在庆祝新中国成立70周年的校园歌唱比赛中,11名参赛同学的成绩各不相同,按照成绩取前5名进入决赛.如果小明知道了自己的比赛成绩,要判断能否进入决赛,小明需要知道这11名同学成绩的( )
计算-1+3的结果是( )
2021的相反数是( )
Hospital doctors don`t go out very often as their work ____all their time.
We designed the machine _____the purpose _______production.
He didn`t go into detail on the subject ,he spoke ______.
I _______ by his story that he made up.
As you know, whether the person will be elected president is matter of ___interest.
He started early _______he could get there before nine.
I am all tears, ____,I am listening to you with all attention.