We planned to climb the mountain today, but in such ______ bad weather, it seems out of ______ question.

A．/; the

B．/; /

C．a; a

D．a; the

氯化物检查时，判断结果是用

A．反应生成AgCl白色浊度

B．AgNO3的用量

C．氯化物的多少

D．所用硝酸的量

E．颜色的深浅