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  3. Whichever they may differ widely in function, all cells have a surrounding membrane and an internal, water-rich substance called

Whichever they may differ widely in function, all cells have a surrounding membrane and an internal, water-rich substance called

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问题 Whichever they may differ widely in function, all cells have a surrounding membrane and an internal, water-rich substance called cytoplasm.
选项
答案Whichever—However
解析 译文：无论细胞之间的功能相差有多大，所有细胞外部都有一层包裹着它的细胞膜，内部有一种富含水分的物质——细胞质。
分析：考查连接词的辨析。Whichever是连接代词，而此处修饰整个从句应用连接副词However，不能用连接代词。
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