三种不同物质有如图所示的转化关系：甲乙丙甲，则甲不可能是 [ ] A．Al2O3

个人住房贷款的经办人员在进行调查和检查时，工作重点为( )。

A．确保客户信息真实性

B．与合作机构合作前，要查看合作机构的准入文件、审批批复的合作机构担保金额及银行与合作机构签订的合作协议

C．贷款发放前，落实贷款有效担保

D．贷款发放后，对客户还款情况、担保人或抵(质)押物的变动情况进行有效的监控

E．加强贷后客户检查，按规定撰写客户贷后检查报告

Domestic (驯养的) horses now pull ploughs, race in the Kentucky Derby, and carry police. But early horses weren’t tame (驯服的) enough to perform these kinds of tasks. Scientists think the first interactions humans had with horses were far different from those today.

Thousands of years ago, people killed the wild horses that lived around them for food. Over time, people began to catch the animals and raise them. This was the first step in domestication.

As people began to tame and ride horses, they chose to keep those animals that had more desirable characteristics. For example, people may have chosen to keep horses that had a gentle personality so they could be ridden more easily. People who used horses to pull heavy loads would have chosen to keep stronger animals. Characteristics like strength are partly controlled by the animals’ genes. So as the domesticated horses reproduced, they passed the characteristics on to their young. Each new generation of houses would show more of these chosen characteristics.

Modern day horse breeds come in a wide variety of shapes and sizes. This variety didn’t exist in the horse population before domestication. The Shetland horse is one of the smallest breeds—typically reaching only one meter tall. With short, strong legs, the animals were bred to pull coal out of mine shafts (矿井) with low ceilings. Huge horses like the Clydesdale came on the scene around 1700. People bred these heavy, tall horses to pull large vehicles used for carrying heavy loads.

The domestication of horses has had great effects on societies. For example, horse were important tools in the advancement of modern agriculture. Using them to pull ploughs and carry heavy loads allowed people to farm more efficiently. Before they were able to ride horses, humans had to cross land on foot. Riding horses allowed people to travel far greater distance in much less time. That encouraged populations living in different areas to interact with one another. The new from of rapid transportation helped cultures spread around the world.

1. Before domestication horses were ______.

A. caught for sports

B. hunted for food

C. made to pull ploughs

D. used to carry people

2. The author uses the Shetland horse as an example to show ______.

A. it is smaller than the Clydesdale horse

B. horse used to have gentle personalities

C. some horses have better shaped than others

D. horses were of less variety before domestication

3. Horses contributed to the spread of culture by ______.

A. carrying heavy loads

B. changing farming methods

C. serving as a means of transport

D. advancing agriculture in different areas

4. The passage is mainly about _______.

A. why humans domesticated horses

B. how humans and horses needed each other

C. why horses came in different shapes and sizes

D. how human societies and horses influenced each other

2007年，美国爆发了次级债危机。长期以来，有些美资商业银行员工违规向信用分数较低、收人证明缺失、负债较重的人提供贷款，由于房地产市场回落，客户负担逐步到了极限，大量违约客户出现，不再偿还贷款，形成坏账，次级债危机就产生了。危机使信用衍生产品市场大跌，众多机构的投资受损，并进一步致使银行间资金吃紧。危机殃及了许多全球知名的商业银行、投资银行和对冲基金，使长期以来它们在公众心目中稳健经营的形象大打折扣。上述信息包含了商业银行在经营过程中的()等风险。

A.市场风险

B.信用风险

C.操作风险

D.流动性风险

E.声誉风险

细菌性肝脓肿中等大小，主要治疗措施为

A．全身应用抗生素
B．输血，应用抗生素
C．穿刺抽脓，应用抗生素
D．全身支持疗法，应用抗生素
E．手术切开引流

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