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单克隆抗体制备过程中使用的骨髓瘤细胞是一种缺陷型细胞，在含有次黄嘌呤、氨基喋呤和胸腺嘧啶的培养基（HAT）中无法生长；而小鼠脾细胞是正常细胞，在HAT培养基上可正常存活。用聚乙二醇诱导细胞融合后，经过数代培养，最终不能在HAT培养基上存活并不能产生单克隆抗体的细胞是A.
骨髓瘤细胞之间形成的融合细胞
B.
脾细胞之间形成的融合细胞
C.
骨髓瘤细胞与脾细胞之间形成的融合细胞
D.
脾细胞
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【单选题】In his novel, Robinson Crusoe, Daniel Defoe eulogizes the hero of the______.
A.
aristocratic class
B.
rising bourgeoisie
C.
enterprising landlords
D.
hard-working people
【简答题】¡Madre ______ ¡ ¡tantos regalos!
【简答题】Part B 67. Below is a list of estimates of the average temperature rise in China in the 21st century. Look at it and write an essay of about 120 words reference to the following two points : 1)...
【单选题】What list below could be considered a list of themes in First Confession?
A.
justice, power, greed, betrayal
B.
poverty, family, generosity, welfare
C.
Irish culture/Catholicism, religious hypocrisy, sibling rivalry,
D.
gratitude, responsibility, reform, forgiveness
【单选题】Why was Daniel Defoe arrested?
A.
He wrote articles critical of the Church of England.
B.
He refused to stop publishing the Review.
C.
He refused to pay publishing taxes.
D.
He refused to join the Church of England.
【简答题】Questions 33-35 The list below gives some of the factors that are necessary to assist the revitalisation of a language within a community. Which THREE of the factors are mentioned by the writer of the...
【单选题】Daniel Defoe was most famous for his adventure story ______.
A.
Robinson Crusoe
B.
The Vicar of Wakefield
C.
Treasure Island
D.
Captain Singleton
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