Accomplishment and attempted theft of scientific criteria for the distinction is whether there is constitutive elements of crime, not to the standard theory of a single theory.

盗窃罪既遂与未遂的科学区分标准是是否具备犯罪构成要件，而不能采取单一学说理论为标准。

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The punishment to attempted crime behavior is long-standing , but the theory circle has very great disputes on basis , principle punished.

对犯罪未遂行为的处罚由来已久，但在处罚的依据、原则问题上理论界有很大争议。

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