英语翻译these are two concepts of efficiency:efficiency in obtaining the right overall amout of pollution control and efficiency in allocating pollution control responsibility to specific polluters.

Are these any___between two cities these two women are wearing f____ hit. 英语翻译These two rooms are a Tom and Jim's bTom's and Jim cTom's and Jim's 英语翻译Are these your apples?Are these apples____? Now many people are crazy about these two personsNow many people ------ these two persons ------- ----- These two watches are in the lost and found case I need there are some () between these two books.(区别) These two shirts are the same.同义句 these are the first two verses of a_children's song There are many d______ between these two pictures. girls these her are friends two连词成句 there are many d[ ]between these two picture these are two photos of my family一般疑问句 How much are these socks?They're two dollaras. these,who,girls,are,two连词成句 two,are,Mike's,sisters,these,girls连词成句 用are brother two these boys my 造句,句号 Which two of these pictures are the same