_________(61)A.strengthened B.weakenedC.reinforce

1，－5，13，－29，______ A.－61 B.－39 C.39 D.61

61._________A. drawsB. speaksC. sendsD. hearsay

61._________A. springB. sourceC. reasonD. motive

61._________A. processesB. producesC. possessesD.

61._________A. enjoyedB. experiencedC. performedD

61._________A.. modificationB. detectionC. assess