题目内容

标定EDTA实验中,用EDTA标准溶液滴定至溶液由红色变为紫蓝色即为终点,使计算的EDTA浓度偏大。

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

1. ____________ is the most common cause of secondary intracerebral hemorrhage.

2. Secondhand smoke also damages blood vessels, interferes with circulation and increases the risk of _____________.

3. She is deaf, but refuses to let her __________ prevent her from doing what she wants to do.

4. Research data indicates that moderate and high levels of physical activity may reduce the risk of total, ischemic, and __________ strokes.