血清apoB可以直接反映（） A.CM B.Lp A. C.VLDL D.HDL E

对调任人选的文化程度有什么要求？

高氯酸铵可用于火箭推进剂，实验室可由NaClO₃等原料制取(部分物质溶解度如图)，其实验流程如下：

（1）氯酸钠受热分解生成高氯酸钠和氯化钠的化学方程式为              。

（2）80℃时浸取液冷却至0℃过滤，滤渣的主要成分为           （写化学式）。

（3）反应器中加入氯化铵饱和溶液发生反应的离子方程式为            。

（4）已知：2NH₄ClO₄ N₂↑+2O₂↑+Cl₂↑+4H₂O，现可提供下列试剂：

a.饱和食盐水   b.浓H₂SO₄   c.NaOH溶液   d.Mg   e.Cu   f.Fe

利用下图装置对高氯酸铵热分解产生的三种气体进行分步吸收或收集。

①E中收集到的气体可能是       (填化学式) 。

②装置D的作用可能是         。

③A、B、C中盛放的药品依次可以是          (选填:Ⅰ、Ⅱ、Ⅲ)。

Ⅰ. a b d     Ⅱ. c b e     Ⅲ. b c f

要全面地认识资本主义制度下资本的本质，对资本的正确理解应当是( )。

A．资本不是静止物，而是一种运动

B．资本是能够带来剩余价值的价值

C．资本是以物为媒介的社会生产关系

D．资本是一个历史范畴

根际（rhizosphere）

Over the last 70 years．researchers have been studying happy and Unhappy people and finally found out ten factors that make a difference．Our feelings of well-being at any moment are determined to a certain degree by genes．However of all the factors，wealth and age are the top two．

Money can buy a degree of happiness．But once you can afford to feed，clothe and house yourself, each extra dollar makes less and less difference．

Researchers find that，on average，wealthier people are happier．But the link between money and happiness is complex．In the past half-century, average income has sharply increased in developed countries，yet happiness levels have remained almost the same．Once your basic needs are met，money only seems to increase happiness if you have more than your friends，neighbors and colleagues．

“Dollars buy Status(社会地位)，and status makes people feel better,” conclude some experts，which helps explain why people who can seek status in other ways-scientists or actors，for example-may happily accept relatively poorly-paid jobs．

In a research，Professor Alex Michalos found that the people whose desires-not just for money，but for friends，family, job，health-rose furthest beyond what they already had，tended to be less happy than those who felt a smaller gap(差距)．Indeed，the size of the gap predicted happiness about five times better than income alone．“The gap measures just blow away the only measures of income，”says Michalos．

Another factor that has to do with happiness is age．Old age may not be so bad．“Given all the problems of aging，how could the elderly be more satisfied?” asks Professor Laura Carstensen．

Why are old people happier? Some scientists suggest older people may expect life to be harder and learn to live with it，or they're more realistic about their goals，only setting ones that they know they can achieve．But Carstensen thinks that with time running out，older people have learned to focus on things that make them happy and let go of those that don't．

“People realize not only what they have，but also that what they have cannot-last forever,” she says．“A goodbye kiss to a husband or wife at the age of 85，for example，may bring far more complex emotional responses than a similar kiss to a boy or girl friend at the age of 20.”

小题1:According to the passage，the feeling of happiness _________.   

A．has little to do with wealth

B．increases gradually with age

C．is measured by desires

D．is determined partly by genes小题2:Some actors would like to accept poorly-paid jobs because the jobs _________.

A．make them feel much better

B．provide chances to make friends

C．improve their social position

D．satisfy their professional interests小题3:Aged people are more likely to feel happy because they are more _________.   

A．optimistic

B．practical

C．successful

D．emotional小题4:Professor Alex Michalos found that people feel less happy if __________.

A．the gap between reality and desire is bigger

B．they have a stronger desire for friendship

C．their income is below their expectation

D．the hope for good health is greater