皮皮学，免费搜题
登录
搜题
【判断题】
将反应Cr2O72-＋14H+＋6Cl-＝2Cr3+＋3Cl2＋7H2O组成原电池，可表示为（-）Pt(s)｜Cr2O72-(c1), Cr3+(c2),14H+(c3)‖Cl-(c4)｜Cl2(p) ,Pt(s)（+）A.
正确
B.
错误
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's the weather like in Beijing now? — It's ______, and the ground is white with ______. [ ]
A.
snow; snow
B.
snowy; snowy
C.
snowy; snow
D.
snow; snowy
【单选题】-30. If he—— here now, he would be doing everything he could to help you.
A.
were
B.
is
C.
will be
D.
be
【简答题】阅读理解。根据短文内容填空。 Good morning. Here's the weather report by Jane White. Today the weather is wet. It's windy, too. It's 10℃ now. I'm in Shanghai. You can wear your sweater and jeans. Have a good day! 1....
【单选题】Why are weather-boarded houses painted white according to the passage?
A.
To contrast with the colored window-frames and doors.
B.
As a break with the traditional coloring.
C.
Because this is the tradition.
D.
To cover the original tarred surface.
【单选题】According to the passage, weather-boarded houses are painted white ______.
A.
to contrast with the colored window-frames and doors
B.
as a break with the traditional coloring
C.
where this is the tradition
D.
to cover the original tarred surface
相关题目：