五线谱是一种记谱法,通过在五根等距离的平行横线上标以不同时值的音符及其他记号来记载音乐,如图,
,
,
为直线与五线谱横线相交的三个点,若
,则
的长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/3c79d723-521a-4708-a7d5-b078bdaa90ee.png?resizew=130)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0763b031b7e6b6d87ce3554ac482d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/3/3c79d723-521a-4708-a7d5-b078bdaa90ee.png?resizew=130)
A.8 | B.9 | C.10 | D.11 |
更新时间:2023-04-30 16:00:32
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【知识点】 由平行截线求相关线段的长或比值解读
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