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【简答题】
试比较补体系统活化的三条途径的异同点 A. 补体系统激活有经典途径．MBL途径及旁路途径，它们的相同点表现为：一旦形成C3转化酶后，作用C3裂解，形成C5转化酶，相继作用C5裂解，然后依次激活补体其他成分，形成膜攻击复合物C56789导致细胞膜破裂．细胞死亡。主要不同点表现为； 比较项目 经典激活途径 MBL途径 旁路途径 激活物质 抗原与抗体形成复合物 MBL与病原体结合 细菌脂多糖．凝集IgG4，IgA 参与成分 c1～c9| MBL．MASP．C2-C9 C3 ．C5～C9． B因子．D因子．P因子 C3转化酶 C4b2a C4b2a C3bBb C5转化酶 C4b2a3b C4b2a3b C3bnBb 生理作用 参与特异性体液免疫 参与非特异性免疫， 参与非特异性免疫
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参考答案：
举一反三
【简答题】测量常用的坐标系有哪些?
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【判断题】当机床出现超行程报警时，按下复位按钮“RESET”即可使报警解除。
A.
正确
B.
错误
查看完整题目与答案
【简答题】A．Women are under more stress than men. B．Women have more heart attacks than men. C．Women get less care than men do. D．Women have less serious heart attacks than men.
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【单选题】豆浆含有胰蛋白酶抑制物,不达到高温摄氏()度以上,喝了会发生消化不良、恶心、呕吐、腹泻等症状。
A.
70
B.
80
C.
90
D.
100
查看完整题目与答案
【单选题】A great difference between men and women is that ______.
A.
women have two chromosomes but men have only one
B.
women have two cell lines but men have only one
C.
women can choose from two chromosomes but men cannot
D.
women can choose from two cells but men cannot
查看完整题目与答案
【判断题】当机床出现超行程报警时,按下复位按钮“RESET”即可使超程报警解除。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Men have tried to limit possibilities for women by .
A.
making it difficult for women to move
B.
using heavy wire apparatus to catch women
C.
allowing only women from upper classes to move around freely
D.
insisting that women are inferior to men
查看完整题目与答案
【单选题】乳酸钙片中乳酸钙含量的测定所选用的指示剂是( )
A.
钙紫红素指示剂
B.
甲基红
C.
甲基橙
D.
酚酞
查看完整题目与答案
【单选题】What is the main argument men have raised against women?
A.
Women are lack of cold reasoning.
B.
They depend on intuition too much.
C.
They are unreliable and irrational.
D.
They are too still look down upon women.
查看完整题目与答案
【单选题】下列依据实验目的所设计的实验操作中，正确的是 选项 实验目的 实验操作
A.
检验二氧化碳 将二氧化碳通入紫色石蕊溶液中
B.
鉴别氮气和二氧化碳 将燃着木条伸入瓶中
C.
除去暖瓶中的水垢 向暖瓶中加入食醋
D.
析出食盐晶体 冷却热的饱和食盐溶液
查看完整题目与答案
相关题目：
【简答题】测量常用的坐标系有哪些?
查看完整题目与答案
【判断题】当机床出现超行程报警时，按下复位按钮“RESET”即可使报警解除。
A.
正确
B.
错误
查看完整题目与答案
【简答题】A．Women are under more stress than men. B．Women have more heart attacks than men. C．Women get less care than men do. D．Women have less serious heart attacks than men.
查看完整题目与答案
【单选题】豆浆含有胰蛋白酶抑制物,不达到高温摄氏()度以上,喝了会发生消化不良、恶心、呕吐、腹泻等症状。
A.
70
B.
80
C.
90
D.
100
查看完整题目与答案
【单选题】A great difference between men and women is that ______.
A.
women have two chromosomes but men have only one
B.
women have two cell lines but men have only one
C.
women can choose from two chromosomes but men cannot
D.
women can choose from two cells but men cannot
查看完整题目与答案
【判断题】当机床出现超行程报警时,按下复位按钮“RESET”即可使超程报警解除。
A.
正确
B.
错误
查看完整题目与答案
【单选题】Men have tried to limit possibilities for women by .
A.
making it difficult for women to move
B.
using heavy wire apparatus to catch women
C.
allowing only women from upper classes to move around freely
D.
insisting that women are inferior to men
查看完整题目与答案
【单选题】乳酸钙片中乳酸钙含量的测定所选用的指示剂是( )
A.
钙紫红素指示剂
B.
甲基红
C.
甲基橙
D.
酚酞
查看完整题目与答案
【单选题】What is the main argument men have raised against women?
A.
Women are lack of cold reasoning.
B.
They depend on intuition too much.
C.
They are unreliable and irrational.
D.
They are too still look down upon women.
查看完整题目与答案
【单选题】下列依据实验目的所设计的实验操作中，正确的是 选项 实验目的 实验操作
A.
检验二氧化碳 将二氧化碳通入紫色石蕊溶液中
B.
鉴别氮气和二氧化碳 将燃着木条伸入瓶中
C.
除去暖瓶中的水垢 向暖瓶中加入食醋
D.
析出食盐晶体 冷却热的饱和食盐溶液
查看完整题目与答案
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