Which adjective describes something that is unlikely to happen?

下列哪一表述最准确地概括了马克思主义政党的根本优势？

In the context of medical ethics, what does the principle 'having two effects... is permissible if the actor intends only the good effect' primarily address?

Which tense is correctly used in the sentence: 'By the time the report was published, the company _____ new data security policies.'

在NLP中，以下哪项最准确地描述了“没有单一正确的地图”这一概念？