【单选题】按照古典贸易理论,国际贸易产生的原因主要是因为( )。
【单选题】These_______want to have some fish for lunch ,so they decide to catch many ________
【单选题】已知一函数的形参说明为int arr[5][6],则与此等效的形参说明为
【简答题】已知a:b=3:5,a:c=6:7,则a:b:c=______.
【单选题】按照新古典贸易理论,国际贸易产生的原因主要是 ( )。
【单选题】These Germans want to have some _____ for supper, so they decide to catch _____ now. [ ]
【单选题】按照新古典贸易理论,国际贸易产生的原因主要是因为( )。
【单选题】______ some fish in the river. [ ]
【单选题】We have some chicken,but we _____ fish. [ ]
【简答题】Some fish have a greater ________ for acid water than others. A) tolerance B) resistance C) dependence D) persistence