一种喷洒稻的药水，药粉和水的质量比是1:200.现在用150g的药粉配药水，要加多少千克水？？

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2022-12-20 15:30 分类：问答
“雨夜愁人耳”上一句是什么？

惰性的成熟开发者_运维百科 2022-05-17 10:32 “雨夜愁人耳”上一句是：“秋天思妇心”，这是出自于唐朝白居易所著的《秋虫》。附《秋虫》全文赏析秋虫作者：白居易朝代：唐朝切切暗窗下，[详细]

2022-12-20 14:22 分类：问答
Rails ActiveRecord associations inconsistently updated

I am running into some Rails 2.3.5 ActiveRecord behavior I do not understand. It appears that an object can have its association ids updated in inconsistent ways.[详细]

2022-12-20 14:06 分类：问答
开冷饮店需要多少钱啊？开一个冷饮店需要多少钱？？

karenqing 2022-05-18 00:29 开发者_C百科看看那个大街上的奶茶店，规模不打投资也不大，但收入挺好的。做冷饮店也差不多，不要多少钱的，大概1万左右。[详细]

2022-12-20 12:54 分类：问答
做b超要多少钱啊？？

放松心情 2022-05-19 10:44 开发者_开发技巧B超检查价格一般在几十块钱左右，不会超过100块的，但也要具体情况具体分析，因为每家医院的收费也是不一样的。不过现在一般只要是好一点的一样都是有孕前检查这方面[详细]

2022-12-20 09:20 分类：问答
Why/When in Python does `x==y` call `y.__eq__(x)`?

The Python docs clearly state that x==y calls x.__eq__(y).However it seems that under many circumstances, the opposite is true.W开发者_JAVA百科here is it documented when or why this happens, and how c[详细]

2022-12-20 05:41 分类：问答
How to create PDF files in Python [closed]

Closed. This 开发者_C百科question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2022-12-19 20:14 分类：问答
WPF - Animation to make an error message disappear

I have the following xaml 开发者_C百科in my window: <Border Height=\"100\" BorderBrush=\"Black\" BorderThickness=\"2\" CornerRadius=\"10\" Background=\"PaleVioletRed\" HorizontalAlignment=\"Center[详细]

2022-12-19 06:31 分类：问答
Eager loading a tree in NHibernate

I have a problem trying to load a tree, this is my cas开发者_运维知识库e, I have an entity associated with itself (Hierarchic) with n levels; the question is, Can I load eagerly the entire tree using[详细]

2022-12-19 03:20 分类：问答
祥子的脸通红，手哆嗦着，拍出九十六块钱来：“我要这辆车！”（手哆嗦着的作用）？

巢柳 2022-05-29 20:17 开发者_JS百科表示他很激动，也很舍不得[详细]

2022-12-18 18:49 分类：问答