问题
单项选择题
书写病历一般不宜使用纯蓝墨水，主要原因是（）
A.色素成分主要为酸性墨水蓝，易溶于水，耐晒性、耐水性差
B.属于直接染料，水溶性好、耐酸碱
C.色素成分是酸性大红C，易溶于水
D.墨水中缺少稳定剂
E.色素成分为碱性染料
答案
参考答案：A
解析：酸性墨水是纯蓝墨水的主要色素成分。易溶于水，耐晒性、耐水性差。不耐酸碱，易褪色。是不耐久字迹。
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书写病历一般不宜使用纯蓝墨水，主要原因是（）
A.色素成分主要为酸性墨水蓝，易溶于水，耐晒性、耐水性差
B.属于直接染料，水溶性好、耐酸碱
C.色素成分是酸性大红C，易溶于水
D.墨水中缺少稳定剂
E.色素成分为碱性染料
参考答案：A
解析：酸性墨水是纯蓝墨水的主要色素成分。易溶于水，耐晒性、耐水性差。不耐酸碱，易褪色。是不耐久字迹。
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