a. 根据推定的, 假定的, 预期的

[医] 推定的, 预期的

Presumptive \Pre*sump"tive\, a. [Cf. F. pr['e]somptif.]
1. Based on presumption or probability; grounded on probable
evidence; probable; as, presumptive proof.

2. Presumptuous; arrogant. [R.] --Sir T. Browne.

{Presumptive evidence} (Law), that which is derived from
circumstances which necessarily or usually attend a fact,
as distinct from direct evidence or positive proof;
indirect or circumstantial evidence. ``Presumptive
evidence of felony should be cautiously admitted.''
--Blackstone. The distinction, however, between direct and
presumptive (or circumstantial) evidence is now generally
abandoned; all evidence being now more or less direct and
more or less presumptive.

{Presumptive heir}. See {Heir presumptive}, under {Heir}.