【名词&注释】
分子结构(molecular structure)、党的建设(party building)、先进性建设(advanced construction)、价值量(value quantity)、党的先进性(the advancement of the party)、实际上(actually)、民主制度建设(democratic system construction)、党的廉政建设
[多选题]十七大报告提出党的建设主要是（ ）
A. 党的执政能力建设
B. 党的先进性建设
C. 党的廉政建设
D. 党的民主制度建设(democratic system construction)
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举一反三：
[单选题]马克思指出：“不管生产力(指生产率引者注)发生了什么变化，同一劳动在同样的时间内提供的价值量总是相同的。但它在同样的时间内提供的使用价值量会是不同的：生产力提高时就多些，生产力降低时就少些。”这表明．在活动不变的情况下，社会或部门劳动生产率提高，单位时间内生产的商数量和价值总量之间的变化表现为
A. 商品数量增加，价值总量不变
B. 商品数量不变，价值量增大
C. 商品数量增加，价值量减少
D. 商品数量增加，价值量增大
[单选题]According to the anti -railway group, all the followings are true but ______.
A. tunnels are dangerous to public health
B. the noise and the glare of the engine fire may affect people' s nerves
C. the rapid speed through the air does damage to people's lungs
D. to those with high blood - pressure, the rapid speed of the train causes them to die
[单选题]There may also be other targets not yet explored that affect aging and neuromuscular function. Said Kornfeld: “The process of aging remains mysterious. ”
A. But Komfeld said scientists will not know about the applicability of the drugs in humans until a similar study is done on humans. “What’s very encouraging is that these drugs were developed to treat humans, and they are well understood, because they’ve been used for a long time, ” he said。
B. Later the scientists discovered that two related anticonvulsant drugs also lengthened the lives of the worms-in the case of one drug, by almost 50 percent. “This was a big surprise to use, Komfeld said. ”“We didn’t think anticonvulsant drugs had any particular relationship to aging. That connection was completely unexpected. ”
C. Roundworms are a poor subject for experiments, because they are not like humans, even though their molecules are similar. For example, they have no bones, nor do they show emotions, making it difficult to know how exactly human subjects would react to these drugs in large quantities. However, using the worms allows experiments to be conducted quickly, because they do not live for long。
D. “Somehow the neural activity seems to regulate the aging of all of the body the skin, musculature, and reproductive tract, ” Kornfeld said. “Somehow the nervous system coordinates the progress of all these tissues, evidently, though the life stages. But we don’t know how it does that. ”
E. The discovery may also shed light on the little-understood aging process. Since the drugs act on the neuromuscular systems of both humans and worms, the findings hint at a link between neural activity and aging。
F. F. Unlike vertebrates, the worms are ideal subjects for the study of aging because of their short life spans, which last only a couple of weeks in a laboratory. The worm is well known in genetics, and the worm’s genome has been sequenced。
G. G. Use of this drug has been permitted by law since 1998 and wider use is now expected as a result of the studies. “We can clearly link this drug with human aging, but we still need to find proof, says Kornfeld optimistically. ”
[单选题]经济学分析中所说的短期是指( )
A. 一年之内 B．全部生产要素都可随产量调整的时期
B. 至少有一种生产要素不能调整的时期 D．只能调整一年生产要素的时期
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