问题 问答题

重症肌无力患者的临床表现是什么

答案

参考答案:(1)MG的肌无力特点:MG患者肌无力的显著特点是每日波动性,即晨轻暮重或休息后减轻而活动后加重等波动性症状。肌无力可累及人体任何部位的随意肌,但有些肌肉特别容易受累,其中以上睑提肌和眼外肌最为常见(约占70%),表现为眼睑下垂、复视、斜视等,其中半数为首发症状,另有16%的患者肌无力始终局限在眼外肌。5%~10%的MG患者以咽喉肌无力起病,表现为说话带鼻音、声音嘶哑、吞咽困难等。面肌和咀嚼约有10%的患者以肢体无力为首发症状。肌无力为首发症状者少见,不足1%。颈肌无力者高达40%,但作为首发症状者仅为1%左右。
(2)MG的伴发疾病:除了肌无力症状以外,MG还可以合并胸腺瘤和胸腺增生以及其他与自身免疫有关的疾病如甲状腺功能亢进症、甲状腺功能减退症、视神经脊髓炎、多发性硬化、系统性红斑狼疮、多发性肌炎、类风湿关节炎和类肌无力综合征(Lambelt-Eatonmyastheniasyn-drome,LEMS)。
(3)危象:MG患者在病程中由于某种原因突然发生的病情急剧恶化,呼吸困难,危及生命的危重现象。

阅读理解

第三部分:阅读(共20小题;每小题1.5分,满分30分)

阅读下列短文,从每题所给的A、B、C和D项中,选出最佳选项,并在答题卡上将该项涂黑。

Most people want to know how things are made. They honestly admit, however, that they hardly know a thing when it comes to understanding how a piece of music is made. Where a composer begins, how he manages to keep going – in fact, how and when he learns his trade – all are covered in complete darkness. The composer, in short, is a man of mystery.

One of the first things the common man wants to know about is the part inspiration(灵感)plays in a composer’s work. He finds it difficult to believe that composers are not much interested in that question. Writing music is as natural for the composer as eating or sleeping for all. Music is something that the composer happens to have been born for.

The composer, therefore, does not say to himself: “Do I feel inspired?” He says to himself: “Do I feel like working today?” And if he feels like working, he does. It is more or less like saying to himself: “Do I feel sleepy?” if you feel sleepy, you go to sleep. If you don’t feel sleepy, you stay up. If the composer doesn’t feel like working, he doesn’t work. It’s as simple as that.

66. What would be the best title for the text?

A. Composer: a man of mystery           B. Practice makes good music

C. Relation between sleeping and music       D. Music: product of nature

67. The words “covered in complete darkness” underlined in paragraph 1 most probably mean__________

A. difficult to be made   B. without any light       C. black in color    D. not known

68. Most people seem to think that a composer________.

A. finds it difficult to write music     B. considers it important to have a good rest

C. should like to talk about inspiration  D. never asks himself very simple questions

69. The author will most probably agree that composers_________.

A. are born with a gift for music      B. are people full of mystery

C. work late at night for their music     D. know a lot about eating and sleeping

70. What does the passage mainly talk about?

A. How the music produces.

B. How secret the composer’s work.

C. Why the composer is so popular with people.

D. What the composer often thinks about.

问答题 简答题