问题
单项选择题
Beta blockers work on some physical and emotional symptoms because they ______.
A．fool a person into a healthier stance
B．interfere with the effects of adrenalin
C．produce side effects worse than the symptoms
D．primarily change human thought processes
答案
参考答案：B
解析：[分析] 细节题型。 见文中：These medications，which interfere with the effects of adrenalin…这些用来舒缓心境和较小压力如怯场的药物会干扰肾上腺素……，可知B为答案。
。某化学兴趣小组模拟该处理过程的实验装置如下（夹持装置已略去）：
