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> 舊中文樓, The dead and old Chinese discussion (spam) thread

 
post Oct 4 2019, 07:27
Post #71161
NekoHime27



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QUOTE(PrincessKaguya @ Oct 4 2019, 09:15) *

嘛,我想教授和其他TA也不會想花時間在這東西身上
大學教職員工作性質都是以研究為主的
基本上只有研究品質及數量才能決定你的薪水和地位
說白了lecture和discussion都是在浪費自己的時間
不少教授/TA都是抱着明白就好,不明白給我自行看wiki和textbook的態度 (IMG:[invalid] style_emoticons/default/rolleyes.gif)

哦哦大学好冷漠呀
冷到我都感冒了
(今天确实是感冒了
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post Oct 4 2019, 07:38
Post #71162
kanmurimoriyasushi



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【 #高中生物# 生物化合物-糖类】

糖类 C,H,O(主要能源物质)
单糖:结构单位水解不能。(果糖 葡萄 戊糖 半乳
二糖:可水解二分子单糖。(蔗糖 麦芽 乳糖
多糖:可水解成多个单糖。(淀粉 纤维 果胶 糖原
低聚糖可水解十分子内单糖。超过二分子单糖可称为糖链。
完全水解就是水解产物继续水解、非单糖水解用酶不用ATP。
可溶性糖(还原糖):除多糖和蔗糖。(可以Re多价金属(Cu,Fe)。
←水  解-[二糖] 二糖水解:①蔗糖:葡萄果糖②麦芽:葡萄葡萄③乳糖:半乳葡萄。
[单糖]-脱水缩合→
←水  解-[多糖] 多糖水解:①淀粉,纤维:麦芽。
构成结构:①(半)纤维素,果胶(植物细胞壁)②低聚糖(糖蛋白,糖脂)③核糖(核苷酸)。
储存能量:①淀粉(植物)②肝糖原(动物)。
能源物质:①葡萄糖(主要)②果糖(植物)③半乳糖(动物)(非单糖不作为能源物质、能源不是供能,供能是直接能源
质。
遗传物质:戊糖(脱氧核糖:DNA,核糖:RNA)。
生成:①叶绿体(淀粉)②高体(纤维素,果胶)③主肝脏,肌肉(糖原)②细胞质(蔗糖)。
植物体(包括植物体非细胞结构)干重最多是糖类。
单糖:①多样性由元素组合方式决定②戊糖是五碳糖其余六碳糖③单糖间也能相互转化④葡萄糖是多糖的基本单位
⑤葡萄糖:多羟基醛(醛糖),果糖:多羟基酮(酮糖)。
多糖:①淀粉遇碘变蓝②霉菌有纤维素酶③糖原(动物淀粉)肌糖原不水解直接氧化分解成ATP是能源物质④多糖是分
水解淀粉酶处理后是麦芽糖。
Re糖显色反应:①与斐林试剂②与蓝色可长期保存的本尼迪特试剂(硫酸铜+柠檬酸钠+无水碳酸钠)水浴加热生成
黄↓。
碱铜试剂与还原糖,肽键显色反应。
斐林试剂:甲:0.1g/㎖NaOH 乙:0.05g/㎖CuSO4
双缩脲试:A:0.1g/㎖NaOH B:0.01g/㎖CuSO4
准备:①2㎖待测液。
溶糖:①甲乙分存现配现用②1㎖甲乙混匀水浴加热③先蓝热后先棕再砖红。
肽键:①1㎖A摇匀②4滴B不要过量震荡摇匀③aq变紫。
还原糖 + Cu² → 被氧化糖 + Cu₂O↓(砖红沉淀)(水浴加热、碱性环境)
双缩脲 + CuSO₄ → ? + Cu²?(紫色络合物)(碱性环境)
现配现用:甲乙混合反应产生Cu(OH)₂。
不要过量:大量Cu(OH)₂蓝色沉淀会影响紫色效果。
还原糖实验中:浅色含一定还原糖的非油料作物、像土豆内无淀粉酶(没Re糖)需要加淀粉酶。
双缩脲实验中:大豆要浸泡(?)、蛋清要稀释(防粘试管)。
双飞试剂反用只会发生蓝色沉淀的那个反应。
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post Oct 4 2019, 08:28
Post #71163
Kagoraphobia



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QUOTE(NekoHime27 @ Oct 4 2019, 05:27) *

哦哦大学好冷漠呀
冷到我都感冒了
(今天确实是感冒了

大大保重身體啊
你還有重要任務在身

身邊也有不少人都病了
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post Oct 4 2019, 08:41
Post #71164
NekoHime27



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QUOTE(PrincessKaguya @ Oct 4 2019, 14:28) *

大大保重身體啊
你還有重要任務在身

身邊也有不少人都病了

其实我现在做的较多的是跟客户互动,报价,质量保证等
反而没那么多时间翻译 (IMG:[invalid] style_emoticons/default/heh.gif)
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post Oct 4 2019, 08:43
Post #71165
真實爽粉



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每日簽到
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post Oct 4 2019, 08:58
Post #71166
KOF11



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每日任務
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post Oct 4 2019, 09:31
Post #71167
sdshdv



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新的一天
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post Oct 4 2019, 10:04
Post #71168
NekoHime27



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碧蓝航线第一集好好看呢 (IMG:[invalid] style_emoticons/default/biggrin.gif)
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post Oct 4 2019, 10:34
Post #71169
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post Oct 4 2019, 10:55
Post #71170
beamsinbox



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QUOTE(NekoHime27 @ Oct 4 2019, 10:04) *

碧蓝航线第一集好好看呢 (IMG:[invalid] style_emoticons/default/biggrin.gif)

谷間好好看咧 (IMG:[invalid] style_emoticons/default/biggrin.gif)
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post Oct 4 2019, 11:28
Post #71171
jacketsion1990



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每月签到~~~
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post Oct 4 2019, 11:41
Post #71172
shamansun



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长假临近尾声喽
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post Oct 4 2019, 12:46
Post #71173
beamsinbox



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微妙的時間段出了柯南劇場版和p5dbrip囧
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post Oct 4 2019, 13:21
Post #71174
Azusa Hiiragi



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簽到._.

剛看碧蓝航线#1
很微妙._.
再看多2集._.

碧藍幻想2季和FGO絕對魔獸戰線...在等._.
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post Oct 4 2019, 13:57
Post #71175
JustaHobo



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HV到了兩百初頭等就升得好慢啊(每天大概10場遭遇戰x15的難度)都要三四場才能升等,
看來要到三百等可能還要好久呢zZZ
Credit砸了三十萬在Adept Learner,應該要先花在裝備升級的,搞到現在都沒錢了(笑

情感真麻煩呢,還沒碰過情感的時候不知道,
等到有過又結束後才知道那是多麼珍貴的東西,但也好複雜呢,也好麻煩。想

要碰觸又碰觸不到最煩了,而碰觸到了也不一定真的好啊,哈哈。

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post Oct 4 2019, 14:14
Post #71176
suzuna



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明天好想放假ㄚㄚㄚ
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post Oct 4 2019, 14:35
Post #71177
barryliu199806



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祝大家国庆节快樂 wink.gif
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post Oct 4 2019, 15:23
Post #71178
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唔,super的拍卖真的超火的
为什么有个老哥老是和我抢东西啊
穷 我 穷
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post Oct 4 2019, 15:25
Post #71179
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論語集注

《憲問第十四》

子曰:「有德者必有言,有言者不必有德;仁者必有勇,勇者不必有仁。」
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post Oct 4 2019, 15:31
Post #71180
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QUOTE(FalconF @ Oct 4 2019, 15:23) *

唔,super的拍卖真的超火的
为什么有个老哥老是和我抢东西啊
穷 我 穷

說明了你有眼光
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