职称英语考试

试题来源：2012年职称英语等级考试真题（卫生类B级）
【单选题】

Multiple Sclerosis（多发性硬化症）
1 Multiple Sclerosis (MS) is a disease in which the patient's immune（免疫的）system attacks the central nervous system. This can lead to numerous physical and mental symptoms, as the disease affects the transmission of electrical signals between the body and the brain. However, the human body, being a flexible, adaptable system, can compensate for some level of damage, so a person with MS can look and feel fine even though the disease is present.
2 MS patients can have one of two main varieties of the disease: the relapsing form （复发型）and the primary progressive form. In the relapsing form, the disease progresses in a series of jumps; at times it is in remission（减轻）.which means that a person's normal functions return for a period of time before the system goes into relapse and the disease again becomes more active. This is the most common form of MS; 80-90% of people have this form of the disease when they are first diagnosed. The relapse-remission cycle can continue for many years. Eventually, however, Ioss of physical and cognitive functions starts to take place and the remissions become less frequent.
3 In the primary progressive form of MS, there are no remissions and a continual but steady loss of physical and cognitive functions takes place. This condition affects about 10-15% of sufferers at diagnosis.
4 The expected course of the disease, or prognosis（预后）,depends on many variables: the subtype of the disease, the patient's individual characteristics and the initial symptoms. Life expectancy of patients, however, is often nearly the same as that of an unaffected person - provided that a reasonable standard of care is received. In some cases a near-normal life span is possible.
5 The cause of the disease is unclear; it seems that some people have a genetic Susceptibility（易感性）,which is triggered by some unknown environmental factor. Onset（发作）of the disease usually occurs in young adults between the ages of 20 and 40.It is more common in women than men; however, it has also been diagnosed in young children and in elderly people.
23. Paragraph 1______
24. Paragraph 2 ______
25. Paragraph 3______
26. Paragraph 4______
A. The relapsing form of MS
B. The cause of MS
C. The primary progressive form of MS
D. The definition of MS
E. The development of MS
F. The treatment for MS
27. MS affects the communication of nerve cells between the body and ______
28. An MS patient can feel fine for years without being affected much by ______
29. 10-15% of MS patients are diagnosed as having ______
30. Young adults might have a higher chance of developing the disease than ______
A. the elderly people
B. relatives of MS patients
C. the progressive form
D. the brain
E. life expectancy
F. the disease 

试题出处：http://www.examtiku.com/shiti/413723558.html
网考网参考答案：D、A、C、E、D、F、C、A
网考网解析：进入考试题库查看解析
大数据分析：根据网考网与考试题库的统计分析，该试题：
52%的考友选择了A选项
22%的考友选择了B选项
12%的考友选择了C选项
9%的考友选择了D选项
3%的考友选择了E选项
2%的考友选择了F选项
考友解析与评论：
 · 原先有道题和这题几乎一样，只是稍有不同，大家看看就可理解了，那个答案正确。
 · 答案有调整过吗，感觉原先做对了的
 · 答案是什么啊，这题比较模糊