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.

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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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