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【单选题】
免疫自稳功能异常可发生A.
细菌感染
B.
肿瘤
C.
衰老
D.
自身免疫病
E.
免疫缺陷病
拍照语音搜题，微信中搜索"皮皮学"使用
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【单选题】听力原文：M: I hear Mary is going to college. What is she studying? W: She's taking courses in statistics, economics and accounting. What career does Mary probably plan to follow?
A.
Politics.
B.
Physics.
C.
Business administration.
D.
Geography.
【单选题】关于 CSS 的描述，下列说法正确的是（ ）。
A.
当CSS作为独立的文件时，必须以.html为后缀名
B.
CSS用于设置HTML页面中的文本内容、图片的外形以及版面的布局等外观显示样式。
C.
只有独立的CSS文件才符合结构与表现分离的特点
D.
就目前的使用情况而言,css3使用的比较多
【单选题】A) She made a mistake by taking too few courses in the first term. B) The courses she took were too difficult for her. C) She took too many courses during her first term. D) She found it difficult to ...
A.
She made a mistake by taking too few courses in the first term.
B.
The courses she took were too difficult for her.
C.
She took too many courses during her first term.
D.
She found it difficult to deal with college courses.
【单选题】下列关于CSS层叠性的说法中正确的是
A.
为一个元素多次设置不同样式,处于最后面的CSS样式会被应用。
B.
为一个元素多次设置不同样式,处于最前面的CSS样式会被应用。
C.
为一个元素多次设置不同样式,该元素会同时显示多个样式。
D.
为一个元素多次设置不同样式,所有样式将失效。
【单选题】听力原文：M: I heard Helen's going to college. What's she studying? W: She's taking courses in statistics, economics and accounting. Q: What career does Helen probably plan to follow? (18)
A.
Secretary.
B.
Business administration.
C.
Home economics.
D.
Biology.
【简答题】What are the most popular ESP courses in Britain? [A] Courses for doctors. [B] Courses for businessmen. [C] Courses for reporters. . [D] Courses for lawyers.
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