出于工作需要,我最近开始研究一些中考题目。我发现,“2001年沈阳市中等学校招生全省统一考试理化综合试题”中有一道化学计算题(化学部分第24题)这样叙述道:“鲨鱼是世界上惟一不患癌症的动物,研究发现其体内含有的角鲨烯(化学式为C30H50)有抗癌作用。”居然有动物不会得癌症, For work needs, I recently started to study some of the topics for the examination. I discovered that in 2001, there was a chemical calculation problem (the 24th part of the chemistry part) in the comprehensive physical and chemical examination questions for the province’s secondary school enrollment in Shenyang, which states: “The shark is the only animal in the world that does not suffer from cancer. Its body contains squalene (chemical formula C30H50) has anti-cancer effect.” Actually there are animals that do not get cancer.