1：D It focuses exclusively on jazz

　　2：A Its market has now shrunk

　　3：D Its definition is varied and complicated

　　4：B Listen to them yourself

　　5：B She went to the bank

　　6：C Her credit history was considered poor

　　7：A Start her own business.

　　8：A Build up her own finances step by step

　　9：B It is small and unconventional

　　10：A There wish to set a new farming standard

　　11：B It loosen soil while weeding

　　12：C It has turned certain insects into a new food source

　　13：D It was a pleasant surprise

　　14：A They contain more protein than conventional meats

　　15：C It is environmentally friendly

　　16：B To see if they are inherent trains affecting learning.

　　17：C It was defective

　　18：D Visual aids are helpful to all types of learners

　　19：C Not sending enough time of family life and leisure

　　20：A People would be wrking only fifteen hours a week

　　21：D Deterioration of workers' mental health

　　22：B It has become something of a joke among Germans

　　23：C The city had just been reunified

　　24：B Shortage of funding delayed its constrction

　　25：B Huge maintenance costs accumulate