男，42岁，搬运工，间歇性腰部疼痛2年，腰痛于冬、春季加重，常在休息保暖及服吲哚美辛后缓解，最近1周腰痛加剧，以致不能弯腰，步行困难，体查脊柱无明显畸形，各椎体无压痛，弯腰45°时左下肢牵扯性疼痛，腰椎X线片未见异常。该患者的病史哪项应补充询问（）

[单选题]请阅读 Passage 1，完成第21~25小题 。Passage 1As regards social conventions，we must say a word about the well-known English class system. This is an embarrassing subject for English people，and one they tend to be ashamed of ，though during the present century class-consciousness has grown less and less，and the class system less rigid.But it still exists below the surface.Broadly speaking，it means there are two classes，the "middle class" and the"working class". (We shallignore for a moment the old "upper class"，including the hereditary aristocracy，since it is extremely small in numbers; but some of its members have the right to sit in the House of Lords，and some newspapers take surprising interest in their private life.) The middle class consists chiefly of well-to-do businessmen and prof essional people of all kinds.The working class consists chiefly of manual and unskilled workers.The most obvious difference between them is in their accent.Middle-class people use slightly varying kinds of "received pronunciation" which is the kind of English spoken by BBC announcers and taught to overseas pupils.Typical working-class people speak in many different local accents which are generally felt to be rather ugly and uneducated.One of the biggest barriers of social equality in England is the two-class education system.To have been to a so-called "public school" immediately marks you out as one of the middle class.The middle classes tend to live a more formal life than working-class people，and are usually more cultured.Their midday meal is"lunch" and they have a rather formal evening meal called"dinner"，whereas the working man's dinner，if his working hours permit，is at midday，and his smaller，late-evening meal is called supper.As we have said，however，the class system is much less rigid than it was，and for a long time it has been government policy to reduce class distinctions.Working-class students very commonly receive a university education and enter the professions，and working-class incomes have grown so much recently that the distinctions between the two classes are becoming less and less clear. However，regardless of one's social status，certain standards of politeness are expected of everybody，and a well-bred person is polite to everyone he meets，and treats a laborer with the same respect he gives an important businessman.Servility inspires both embarrassment and dislike.Even the word "sir"，except in school and in certain occupations (e.g.commerce，the army，etc.) sounds too servile to be commonly used.The most obvious difference between the working class and the middle class in English is their ____.

[单选题]在其他因素相同的情况下，资本金较高的银行（）。

[单选题]Unix文件的存取有三种权限r，w，x，其中，x表示（）

[问答题]请用生活中你所熟悉的例子说明自信的重要性。

[名词解释题]新闻指导性

[单选题]条件反射建立在下列哪项基础上（）。

[单选题]突变筛查（）。

[填空题]实体-联系模型的三要素是实体、（）和实体之间的联系。

[配伍题]听神经瘤造成（　）|垂体腺瘤造成（　）|颅咽管瘤造成（　）|脑膜瘤造成（　）

[多选题]下列哪些不可以在振动筛工作的情况下进行（）