What are correct for describing off-set yield strength?

A.Off-set yield strength is the stress corresponding to the plastic limit.

B.It is the lowest stress at which a limited amount of plastic deformation occurs.

C.Off-set yield strength is the stress corresponding to the elastic limit.

D.If a plastic strain of 0.002 in./in. can be tolerated, the stress that produces this strain is designated as the yield strength of the material at 0.2% offset.

正确答案：It is the lowest stress at which a limited amount of plastic deformation occurs.；If a plastic strain of 0.002 in./in. can be tolerated, the stress that produces this strain is designated as the yield strength of the material at 0.2% offset.