Intheexperimenttheresearcherplacedaratinamaze()itwaspresentedwithdifferentsmellstoseeifitcan.
A.what B.that C.where D.which正确答案C
Intheexperimenttheresearcherplacedaratinamaze()itwaspresentedwithdifferentsmellstoseeifitcan.
A.what B.that C.where D.which正确答案C