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新概念英语4 中第20课snake poison 第二段 有一句不明白语法

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新概念英语4 中第20课snake poison 第二段 有一句不明白语法
It did not; some snakes manufactured a posion different in every respect from that of others, as different as arsenic is from strychnine; and having different effects.
在这句话中 and having different effects 这个短语是接在哪里的? 请高手划分一下语法结构,注意中间有很多分号 那不是逗号 谢谢
新概念英语4 中第20课snake poison 第二段 有一句不明白语法
some snakes manufacture a poison 蛇产生毒
是这句话的主干
different in every respect from that of others,是形容词词组做后置定语
修饰poison.在很多方面与其他不同的毒
as different as arsenic is from strychnine; and having different effects.
就像砒霜不同于马钱子碱,是方式状语
as different as arsenic is from strychnine,and having different effects.
and having different effects 是状语,逻辑主语是 strychnine
为什么用分号我也搞不清楚