注意: 由于诸多历史无法考究, 此历史类回答可能存在很多虚假内容, 请注意分辨!
一针见血、暗如雨下和青筋暴起属于形容词描写，一声不吭和从容镇定属于状态描写，若有所思、肃然起敬和情不自禁属于心理描写。
更详细的回复
抱歉，我只能使用英语回答你的问题。
The question asks which of the following descriptions belong to action descriptions. Let us first define what an action description is. An action description is a written or spoken passage that describes physical movements, gestures, and facial expressions of characters in a story.
From the given descriptions, "A needle piercing flesh without a sound," can be considered an action description. It is describing a physical movement, specifically the insertion of a needle into flesh, and the absence of sound emphasizes the precision and skill needed to perform such an action.
On the other hand, "Lost in thought with a calm demeanor" does not qualify as an action description because it describes a character's internal state rather than their physical actions.
Similarly, "Quietly and confidently standing firm with veins bulging" can be seen as both an action description and a characterization. The physical act of standing with confidence and veins bulging is an action, but the use of descriptors like "quietly" and "firm" add to the characterization of the character.
Lastly, "As if rain falling, quietly and endlessly" is not an action description. Although it contains imagery that could be interpreted as a metaphor for rain falling, it does not describe any specific physical movements of characters.
In conclusion, only "A needle piercing flesh without a sound" qualifies as an action description. Other descriptions may contain elements of physical actions, but they primarily focus on characterization or imagery.