题目：
配制中性福尔马林溶液最好用（）
A.醋酸缓冲液
B.枸橼酸缓冲液
C.磷酸缓冲液pH7.2
D.自来水
E.蒸馏
答案：
参考答案：C
配制中性福尔马林溶液最好用（） A.醋酸缓冲液 B.枸橼酸缓冲液 C.磷酸缓冲液pH
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