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BAS目前在多种免疫分析技术等领域中应用广泛，主要包括标记亲合素-生物（LAB法），生物素-亲合素结合法（BAB法）和亲合素-生物酶复合物法（ABC法）等，不同的放大技术可与不同的免疫技术结合，增加检测的灵敏性。BAS应用酶免疫分析时，叙述错误的是A、反应系统中同时有生物素-酶、亲合素-抗原、特异性抗体和待测抗原 B、亲合素标抗原与待测抗原竞争结合抗体 C、生物酶与亲合素标抗原结合后，酶活性不受抑制 D、亲合素标抗原与抗体结合后，不再与生物酶结合，后者保持酶活性 E、生物酶与亲合素标抗原结合后，酶活性受抑制 关于BAS在分子生物学领域的应用，叙述错误的是A、以生物探针进行定位检测 B、用于目的基因的分离纯化 C、免疫-PCR的检测灵敏性可达10-21 mol D、建立免疫-PCR并与ELISA相结合，用于检测PCR扩增产物 E、建立免疫-PCR，用于PCR扩增产物的检测 ABC法中被生物的成分是A、固相载体 B、HRP C、第二抗体 D、抗原 E、抗原特异抗体
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【单选题】Mr. li is a nice teacher, but I don’t like the way—— he treats his own child.
A.
Which
B.
that
C.
where
D.
what
【单选题】Mr. Li is a nice teacher, but I don't like the way_____he treats his own child.
A.
which
B.
that
C.
where
D.
What
【简答题】The man who, legend has it, escaped from an early grave when his uncle pulled himfrom drowning in a dirty pond is notorious for his dirty deeds but what cannotbe forgotten are his achievements in the ...
【简答题】完形填空。 It's a nice day. Li Ming and his friend, Jianjian, go 1 . Li Ming wants to buy a T-shirt, 2 Jianjian wants 3 running shoes (跑鞋). At first (首先), they go to a 4 section. Li Ming 5 a T-shirt, and i...
【单选题】--Nice to meet you, Li Lei. -- ___________
A.
How do you do, Yukio?
B.
See you, Ann.
C.
Nice to meet you, too.
D.
Good afternoon.
【简答题】非挤土桩由于桩径较大，故其桩侧摩阻力常较挤土桩大。
【判断题】The man of the legend, Newton, was the first one who found the reason why apples fall down.
A.
正确
B.
错误
【单选题】A: Li Lei, _____ is my brother. _____ are his books. B: Nice to meet you, Li Lei. [ ]
A.
this, These
B.
That, this
C.
Those, these
D.
Those, that
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