如果只用1种试剂来鉴别FeCl2、AlCl3、MgCl2、NaCl 4种溶液，这种试_爱下问搜题

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问题单项选择题

如果只用1种试剂来鉴别FeCl₂、AlCl₃、MgCl₂、NaCl 4种溶液，这种试剂是( )。

A．NaOH

B．AgNO₃

C．HNO₃

D．KSCN

答案

参考答案：A

选择题

—I've lost all the pictures that we took yesterday!

—_______ [ ]

A. You are kidding!

B. What’s wrong?

C. What do you mean?

D. What are you doing?

选择题

Do they play _______ at 3:00 on Wednesday ?

A．the football

B．the basketball

C．football

D．a basketball