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【单选题】
pH玻璃电极和SCE组成工作电池,25°C时测得pH=6.18的标准电动势是0.220V,而未知试液电动势E =0.186V,则未知试液pH为( )。A.
7.6
B.
4.6
C.
5.6
D.
6.6
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【简答题】Directions: This part is to test your reading ability. There are 5 tasks for you to fulfill. You should read the reading materials carefully and do the tasks as you are instructed. Task 1 Directions: ...
【简答题】Directions: This part is to test your reading ability. There are 5 tasks for you to fulfill. You should read the reading materials carefully and do the tasks as you are instructed. Task 1 Directions: ...
【简答题】Directions: This part is to test your reading ability. There are 5 tasks for you to fulfill. You should read the reading materials carefully and do the tasks as you are instructed. Task 1 Directions: ...
【简答题】Directions: This part is to test your reading ability. There are 5 tasks for you to fulfill. You should read the reading materials carefully and do the tasks as you are instructed. Task 1 Directions: ...
【单选题】关于自身免疫和自身免疫病错误的是()
A.
自身免疫是指机体免疫系统针对自身抗原产生自身抗体和致敏淋巴细胞而引起的免疫应答现象。
B.
自身免疫和自身免疫病是两个不同的概念。
C.
机体对自身抗原产生的免疫应答都是不利的。
D.
正常人体内可以有微量自身抗体。
E.
免疫应答过分强烈，会导致功能障碍。
【简答题】Directions: This part is to test your reading ability. There are 5 tasks for you to fulfill. You should read the reading materials carefully and do the tasks as you are instructed. Task 1 Directions: ...
【单选题】自身免疫是指
A.
机体免疫系统对自身抗原不应答
B.
机体对自身组织成分产生自身抗体和自身免疫效应淋巴细胞
C.
机体对自身抗原产生免疫应答，导致组织损伤并引起临床症状
D.
对机体有害的免疫应答
E.
上述选项都不对
【单选题】关于自身免疫和自身免疫病的叙述，错误的是
A.
自身免疫是指机体免疫系统针对自身抗原产生自身抗体和致敏淋巴细胞而引起的免疫应答现象
B.
自身免疫和自身免疫病是两个不同的概念
C.
机体对自身抗原产生的免疫应答都是不利的
D.
正常人体内可有微量自身抗体
E.
免疫应答过分强烈，会导致功能障碍
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