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【单选题】
糖的纸色谱中常用的显色剂是A.
molisch试剂
B.
苯胺一邻苯二甲酸试剂
C.
Keller- Kiliani试剂
D.
醋酐-浓硫酸试剂
E.
香草醛-浓硫酸试剂
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【简答题】购入材料一批,价值50 000元,材料已验收入库,货款以银行存款支付。
【简答题】阅读理解。 One day Mrs Wilson took Trudy and Ben to go shopping. They went to the supermarket in the new shopping mall (购物中心). 'Why do you buy things here, Mum?' Trudy asked. 'Because they are cheaper than...
【简答题】They took her to one of the best photographers in Berlin, and he a very beautiful picture.
【简答题】阅读理解。 One day Mrs Wilson took Trudy and Ben to go shopping. They went to the supermarket in the new shopping mall (购物中心). 'Why do you buy things here, Mum?' Trudy asked. 'Because they are cheaper than...
【简答题】They took her to one of the best (10)_________________ in Berlin,
【简答题】They took her to one of the best photographers in Berlin, and he came out with a very beautiful picture. (Para. 7)
【简答题】与十六进制数FF.A等值的二进制数为_____.
【简答题】They took her to one of the best (10)_________________ in Berlin, and he came out with a very beautiful picture.
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