单项选择题 It is very important to_________facts and opinions in order to have a better understanding of what a reading passage is talking about.

单项选择题 人工减小细胞浸浴液的Na+浓度，神经动作电位的幅度（）

单项选择题 设（A）=0C3H，（R0）=0AAH， (CY)=1。 执行指令“ADDC A，R0”后的结果及标志位如何？