下列关于免疫浊度法的描述，正确的是()A．速率散射比浊法精密度_爱下问搜题

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问题多项选择题

下列关于免疫浊度法的描述，正确的是()

A．速率散射比浊法精密度优于单向免疫扩散法和终点散射比浊法

B．速率散射比浊法精密度比单向免疫扩散法和终点散射比浊法差

C．免疫比浊法自动化检测分析时必须启动抗原过量的自动检测程序

D．在进行抗原过剩检测时，加入已知校正样品时浊度峰出现再次上升表示抗体仍有过剩，待检抗原的含量在系统检测的线性范围内

E．在速率散射比浊法进行抗原过剩检测时，加入已知校正样品时浊度峰出现再次上升表示抗体没有过剩，待检抗原的含量超出了系统检测的线性范围，需重新稀释后再检测

答案

参考答案：A, C, D

阅读理解

阅读短文，选择合适的答案。

It's Sports Day today. The students are all in the playground. Some of them are having matches(比赛).

Some of them are watching. Look, Helen and Yang Ling are running. Helen is running faster than Yang

Ling. Liu Tao and David are jumping. Liu Tao jumps higher than some of the boys in his class, but David

jumps higher than him. Mike and Tom are doing the long jump now. Who jumps farther, Mike or Tom?

Oh, Mike is jumping two centimeres farther than Tom. They look very happy.

1. It's _______ today.

A. Teachers' Day

B. Sports Day

C. Children's Day

2. The students _______ are having the matches.

A. in the sports hall

B. in the classroom

C. in the playground

3. Liu Tao jumps _______ than David.

A. lower

B. higher

C. farther

4. _______ doesn't jumps as far as Mike.

A. Tom

B. Yang Ling

C. Helen

5. The students are all very _______.

A. tired

B. happy

C. hungry

单项选择题

QBN1-25D是大口径（）棒式绝缘子。

A、轻污型

B、重污型

C、双重绝缘轻污型

D、双重绝缘重污型