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【单选题】
鉴别芳香伯、、叔胺可用( )A.
苯磺酰氯
B.
亚硝酸
C.
硝酸
D.
盐酸
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举一反三
【单选题】What is the author's attitude towards international games?
A.
Nations that meet on a football field are unlikely to meet on a battlefield.
B.
Nations that win the football World Cup are regarded as the best in all aspects.
C.
Nations that win in international games prove the best on the sports field at least.
D.
Nations that give much attention to international competitions are world-famous in many ways.
【单选题】What do we learn about the woman’s sister from the dialogue?
A.
She likes watching football games．
B.
She is a fan of a local football team．
C.
She is a keen football player herself．
D.
She likes the local women football players．
【简答题】The boys playing footbal l are in Class 2.
【简答题】半抗原(hapten)的名词解释
【简答题】抗原决定簇(表位) 2.TD-Ag 3. 异嗜性抗原(Forssman抗原) 4.TI-Ag 5. 交叉反应 6. 佐剂(adjuvant) 7. 超抗原 8. 抗原 9. 半抗原(hapten) 10. 类毒素
【单选题】What is the author's attitude towards international games?
A.
Nations that meet on a football field are unlikely to meet on a battlefield.
B.
Nations that win the football World Cup are regarded as best in all aspects.
C.
Nations that win in international games prove best on the sports field at least.
D.
Nations that give much attention to international competitions are world-famous in many ways.
【简答题】半抗原(hapten)(名词解释)
【简答题】抗原决定簇(表位) TD-Ag 异嗜性抗原(Forssman抗原) TI-Ag 交叉反应 佐剂(adjuvant) 超抗原 抗原 半抗原(hapten) 类毒素
【单选题】What is the author's attitude towards international games?
A.
Nations that meet on a football field are unlikely to meet on a battlefield
B.
Nations that win the football World Cup are regarded as best in all aspects.
C.
Nations that win in international games prove the best on the sports field at least.
D.
Nations that give much attention to international competitions are world-famous in many ways.
【简答题】半抗原（hapten）
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