当下列操作条件改变时，分离度(R)会随之改变的是( )。 A．载

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问题多项选择题

当下列操作条件改变时，分离度(R)会随之改变的是( )。

A．载气流速(v)

B．进样器温度(T_j)

C．色谱柱室温度(T_C)

D．检测器温度(T_D)

答案

参考答案：A,C

填空题

动词填空。

1. Look! The police _________ (hunt) for the lost dog in the forest.

2. There _________ (be) a wonderful basketball match this weekend, won't there?

3. If the boy __________ (not be) so lazy, he'll pass the exam.

4.________ (spend) too much time on computer games may do harm. to our eyes.

5. The policeman told the children __________ (not play) football in the street.

6.Do you know how ___________(get) to the supermarket.

单项选择题

下列哪项检查对明确诊断有意义

A．心电图

B．血气分析

C．脑电图

D．脑血流图

E．超声心动图