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问题 单项选择题 A1型题

中央型肺癌早期常出现的X线征象是（）

A.黏液嵌塞征

B.局限性肺气肿

C.阻塞性肺炎

D.段或叶的肺不张

E.肺门阴影增浓

答案

参考答案：C

解析：中央型肺癌早期管腔狭窄引起阻塞性肺气肿，但很难发现，多数X线表现为阻塞性肺炎。

单项选择题

采样精密度一般用灰分（干基灰分）表示，在用灰分表示精密度时，一般取干基灰分的（）。

A、1/5

B、1/10

C、1/20
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单项选择题

A narrowing of your work interests is implied in almost any transition from a study environment to managerial or professional work. In the humanities and social sciences you will at best reuse only a fraction of the material (1) in three or four years’ study. In most career paths academic knowledge only (2) a background to much more applied decision-making. Even with a " training " form of degree, (3) a few of the procedures or methods (4) in your studies are likely to be continuously relevant in your work. Partly this (5) the greater specialization of most work tasks compared (6) studying. Many graduates are not (7) with the variety involved in (8) from degree study in at least four or five subjects a year to very standardized job (9) . Academic work values (10) inventiveness, originality, and the cultivation of self-realization and self-development. Emphasis is placed (11) generating new ideas and knowledge, assembling (12) information to make a " rational " decision, appreciating basic (13) and theories, and getting involved in fundamental controversies and debates. The humanistic values of higher (14) encourages the feeling of being (15) in a process with a self-developmental rhythm. (16) , even if your employers pursue enlightened personnel development (17) and invest heavily in " human capital " —for example, by rotating graduate trainees to (18) their work experiences—you are still likely to notice and feel (19) about some major restrictions of your (20) and activities compared with a study environment.

（2）（）

A.admits

B.equips

C.states

D.forms
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