皮皮学，免费搜题
登录
搜题
【多选题】
关于KMnO4滴定法描述不正确的是
A.
KMnO4溶液受热易分解，因此溶液应在低温下配制
B.
KMnO4溶液用Na2C2O4进行标定时，碱性环境中进行，因酸使H2C2O4分解
C.
KMnO4溶液标定时宜速度先慢后快，接近终点时宜慢，至溶液保持30秒不褪色即可
D.
KMnO4法用于测定FeSO4补血糖浆快速简便且不需加入另外指示剂故可直接滴定
E.
KMnO4滴定法用H2SO4调节酸度
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
.
..
皮皮学刷刷变学霸
举一反三
【单选题】- What should I do now? - You had better ______.
A.
to stay in bed and to keep warm
B.
to stay in bed and keep warm
C.
stay in bed and keep warm
D.
stay in bed and to keep warm
查看完整题目与答案
【单选题】He＿＿＿＿＿＿rather stay at home than go to the cinema with you.
A.
should
B.
might
C.
would
D.
had better
查看完整题目与答案
【简答题】根据对话选词填空。 had better not , needn’t, had better, would rather, mustn’t JENNY: Nick, we 1______ go to bed. It’s very late. NICK: I know, but I 2______ help Trig than go to bed. He’s tearing up his Eng...
查看完整题目与答案
【单选题】You ______ home if you are not willing to go out with us.
A.
had better to stay
B.
might stay as well
C.
might as well stay
D.
had better staying
查看完整题目与答案
【单选题】choose the correct answer
A.
The salary.
B.
The commission.
C.
The right job.
D.
The interpersonal relations.
查看完整题目与答案
【单选题】钢筋的屈强比越大，说明钢筋在结构中的安全性和可靠性越高。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】合金渗碳钢含碳量一般在
A.
< 0.25%
B.
0.25-0.5%
C.
> 0.5%
查看完整题目与答案
【单选题】合金渗碳钢含碳量一般在( )
A.
< 0.25%
B.
0.25 — 0.5%
C.
> 0.5%
D.
>1%
查看完整题目与答案
【判断题】关系营销是用系统论的方法把一切内外部利益相关者纳入研究范围,考察企业所有活动及其相互关系。
A.
正确
B.
错误
查看完整题目与答案
【判断题】合金渗碳钢的含碳量一般为0.45%～0.65%。（）
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【单选题】- What should I do now? - You had better ______.
A.
to stay in bed and to keep warm
B.
to stay in bed and keep warm
C.
stay in bed and keep warm
D.
stay in bed and to keep warm
查看完整题目与答案
【单选题】He＿＿＿＿＿＿rather stay at home than go to the cinema with you.
A.
should
B.
might
C.
would
D.
had better
查看完整题目与答案
【简答题】根据对话选词填空。 had better not , needn’t, had better, would rather, mustn’t JENNY: Nick, we 1______ go to bed. It’s very late. NICK: I know, but I 2______ help Trig than go to bed. He’s tearing up his Eng...
查看完整题目与答案
【单选题】You ______ home if you are not willing to go out with us.
A.
had better to stay
B.
might stay as well
C.
might as well stay
D.
had better staying
查看完整题目与答案
【单选题】choose the correct answer
A.
The salary.
B.
The commission.
C.
The right job.
D.
The interpersonal relations.
查看完整题目与答案
【单选题】钢筋的屈强比越大，说明钢筋在结构中的安全性和可靠性越高。( )
A.
正确
B.
错误
查看完整题目与答案
【单选题】合金渗碳钢含碳量一般在
A.
< 0.25%
B.
0.25-0.5%
C.
> 0.5%
查看完整题目与答案
【单选题】合金渗碳钢含碳量一般在( )
A.
< 0.25%
B.
0.25 — 0.5%
C.
> 0.5%
D.
>1%
查看完整题目与答案
【判断题】关系营销是用系统论的方法把一切内外部利益相关者纳入研究范围,考察企业所有活动及其相互关系。
A.
正确
B.
错误
查看完整题目与答案
【判断题】合金渗碳钢的含碳量一般为0.45%～0.65%。（）
A.
正确
B.
错误
查看完整题目与答案