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问题 单项选择题

由于抗体过量导致抗原抗体结合物减少的现象为（）

A.前带

B.后带

C.带现象

D.等价带

E.等电点

答案

参考答案：A

解析：抗体过量为前带现象，抗原过量为后带现象。

排序题

读一读，排一排。

( ) I don't think so. We are going to play games. That dress is too long.    

( ) I'm going to go to a party. What should I wear?                          

( ) My friend's birthday party.                                              

( ) Yes, that will be great!                                                  

( ) What about the blue jeans and the yellow T-shirt?                        

( ) What party?                                                              

( ) Why don't you wear your beautiful blue dress?                            

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单项选择题

帕金森病的主要病理部位是（）。

A.黑质

B.红核

C.蓝斑

D.中缝核

E.中脑
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