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【单选题】
将1mol 乙酸（其中的羟基氧用 18 O 标记）在浓硫酸存在下并加热与足量乙醇充分反应.下列叙述不正确的是（ ）A.
生成的乙酸乙酯中含有 18 O
B.
生成的水分子中含有 18 O
C.
可能生成 45g 乙酸乙酯
D.
不可能生成 88g 乙酸乙酯
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