参考答案：B

解析： Now, text messaging is increasingly being used by UK hospitals to remind patients about outpatient appointments — and could potentially save the National Health Service millions of pounds every year. Ealing Hospital in West London sends 20 texts per day, reminding the patients in advance of the date and time of their appointment. Before using the text messaging system, the hospital relied solely on sending patients a letter as a reminder.事实细节的找寻和判断。将题干中关键词与原文对照，发现没有short messages或其相近的表达。原文出现的核心词是text messaging。由此可见，题干的说法是错误的。 注意：排除干扰信息的影响。题干中message与原文中频频出现的messaging，在形式上非常相近，听者会因其相近而忽略其附加内容，造成判断的失误。