具有保护细胞生存能力作用及功能的物质不包括下列哪项（）。
A.葡萄糖
B.枸橼酸盐
C.肝素
D.腺嘌呤
E.磷酸盐
参考答案：C
— When is Christmas?
— ____________! [ ]
A. It's December twenty
B. It's December twenty-fourth
C. It's December twenty-fifth
D. It's December twenty-sixth
