题目内容：
Nicotine is poisonous.
A．Right B．Wrong
C．Not mentioned
参考答案：
答案解析：
单选题：Nicotine is poisonous.
- 题目分类：理工类
- 题目类型：单选题
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B．Wrong
C．Not mentioned
B．Wrong
C．Not mentioned
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某投资项目现金流量如图所示(单位：万元).，基准收益率为l2％，下列说法中，正确的是（ ）
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