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问题 选择题

下列物质在氧气中燃烧，能产生明亮蓝紫色火焰的是（　　）

A．木条

B．硫

C．铝

D．磷

答案

A、木条在氧气中比在空气燃烧的更旺，发出白光，放出大量的热，生成能使澄清石灰水变浑浊的气体，故选项说法错误．

B、硫在氧气中燃烧，发出明亮的蓝紫色火焰，放出热量，产生一种具有刺激性气味的气体，故选项说法正确．

C、铝在氧气中剧烈燃烧，发出耀眼的白光，放出大量的热，生成一种白色固体，故选项说法错误．

D、磷在氧气中燃烧，产生大量的白烟，放出大量的热，故选项说法错误．

故选B．

单项选择题

下列各项中，与女子胞的功能关系最为密切的是（）。

A.心肝脾、冲脉、督脉

B.心肺肾、阳明脉、带脉

C.心肾、冲脉、任脉、督脉

D.心脾、冲脉、任脉、带脉

E.心肝脾肾、冲脉、任脉
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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.

（6）（）

A.with

B.against

C.upon

D.from
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