碘量法测定废气中氯气时，废气中含有氧化性及还原性气体时对测定没有于扰。
参考答案：错
解析：对测定有干扰。
下列物质属于强电解质的是（ ）
A．CH3COOH
B．H2O
C．AgNO3
D．NH3·H2O
Questions 1-4
What reason does the man give to deny the existence of a living monster in Loch Ness？（）
A．No one has provided an accurate description of the animal.
B．No dead bodies of the animal have ever been found.
C．There are only 500 species living in Loch Ness.
D．The lake is not deep enough for such a huge animal.
