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问题 选择题

下列关于物质构成的描述正确的是（　　）

A．金刚石--金原子

B．食盐--氯化钠离子

C．干冰--水分子

D．水银--汞原子

答案

A、金刚石属于固态非金属单质，是由碳原子直接构成的，故选项说法错误．

B、食盐是氯化钠的俗称，氯化钠是由钠离子和氯离子构成的，故选项说法错误．

C、干冰是固态的二氧化碳，是由二氧化碳分子构成的，故选项说法错误．

D、水银是金属汞的俗称，属于金属单质，是由汞原子直接构成的，故选项说法正确．

故选D．

单项选择题

出血性脑血管病最常见的病因是（）

A.烟雾病

B.高血压

C.动脉瘤

D.动静脉畸形

E.海绵状血管瘤
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填空题

Renowned U. S. economist, John Rutledge, who helped frame the fiscal policies of two former U. S. presidents, warned that an abrupt rise in China’ s currency could lead to another Asian financial crisis. The founder of Rutledge Capital told the media that if the yuan rises (1) it would discourage foreign direct investment in China while (2) by market speculators. Currency change is more difficult for investors and (3) .
The Chinese currency has appreciated by (4) since July 2005 when the country allowed the yuan to (5) within a daily band of 0.3 percent. The analysts are expecting the currency to rise (6) by the end of this year. But if the yuan rose 20 to 30 percent, as some U. S. politicians are demanding, it would (7) causing a recession and deflation. Similar advice to allow an abrupt appreciation of a currency led to (8) in 1997, and came very close to destroying (9) . The U. S. economist says that investors want foremost to (10) associated with large fluctuations in currency and inflation. They (11) after evaluating risks to benefits such as (12) . A rising yuan would drive up labor costs for foreign investors and would not (13) .
Earlier reports said that currency speculators had pumped (14) U.S. dollars into China by the end of last year, with another 70 billion U. S. dollars (15) in the first three months of this year. There is no way to (16) of this type of investment and many economists disagree that (17) is so high. Instead of further appreciating its currency, China should make the yuan (18) . If the yuan were more easily converted into foreign currencies it would allow Chinese companies to expand overseas, (19) , and provide management experience and capital that China needs. It would also (20) and reduce speculative money coming into the country.

Renowned U. S. economist, John Rutledge, who helped frame the fiscal policies of two former U. S. presidents, warned that an abrupt rise in China’ s currency could lead to another Asian financial crisis. The founder of Rutledge Capital told the media that if the yuan rises (1) it would discourage foreign direct investment in China while (2) by market speculators. Currency change is more difficult for investors and (3) .
The Chinese currency has appreciated by (4) since July 2005 when the country allowed the yuan to (5) within a daily band of 0.3 percent. The analysts are expecting the currency to rise (6) by the end of this year. But if the yuan rose 20 to 30 percent, as some U. S. politicians are demanding, it would (7) causing a recession and deflation. Similar advice to allow an abrupt appreciation of a currency led to (8) in 1997, and came very close to destroying (9) . The U. S. economist says that investors want foremost to (10) associated with large fluctuations in currency and inflation. They (11) after evaluating risks to benefits such as (12) . A rising yuan would drive up labor costs for foreign investors and would not (13) .
Earlier reports said that currency speculators had pumped (14) U.S. dollars into China by the end of last year, with another 70 billion U. S. dollars (15) in the first three months of this year. There is no way to (16) of this type of investment and many economists disagree that (17) is so high. Instead of further appreciating its currency, China should make the yuan (18) . If the yuan were more easily converted into foreign currencies it would allow Chinese companies to expand overseas, (19) , and provide management experience and capital that China needs. It would also (20) and reduce speculative money coming into the country.
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