provided that 与 if 有什么区别She may come with us ______ that she arrives in time.A.if B.provided C.unless D.for为什么选B?选其它三项为什么不行?

provided that ..与given that...有什么区别吗? provided that 与 if 有什么区别She may come with us ______ that she arrives in time.A.if B.provided C.unless D.for为什么选B?选其它三项为什么不行? providing that 、if、 provided that 当“如果”讲有区别吗? 请问given that与provided on condition that与provided that的区别?详细点, provided that,providing that有区别吗?可以相互替代吗? provided that,providing that有区别吗?可以相互替代吗? provided that 和proving that 区别是什么? given that在意义上是否相当于provided that?谢谢另：giving that有没有这种说法? _______ he is late again tomorrow,will you fire him?选项:a、Suppose that b、If that c、 Provided d、 Once 英语翻译One of the outstanding results is that,if future utility is,not discounted,optimalgrowth paths are globally asymptotically stable provided that utility functions are strictly concave. 英语中表达“如果”除了能用if,without,provided,presumably之外,还能有什么方式?最好能有例句. providing (that),provided (that)和on condition (that)的用法 that if与whether的区别 unless 与 as long as / provided that的分别(1)You can watch this film as long as / provided that you are not under 18.这题可否变成:you can watch this film unldess you are not under 18.unless 和 as long as / provided that 在一些意思看 二、 根据句意和首字母填空 1.If I forget that thing,please r___________ me.2.He has provided the二、 根据句意和首字母填空1.If I forget that thing,please r___________ me.2.He has provided the k____________ to the whole problem s 我有段有关航空的英语不懂请教各位（急）transportation and other services provided by the carrier are subject to conditions of contract and other important notices.please ensure that you have received these notices,and if not,contact 条件状语从句if supposing condition provided区别