问题 单项选择题

对能量位于200keV到2MeV的所有同位素特性的叙述,不正确的是()

A.可应用镭疗计量学体系

B.均为镭的替代用品

C.半价层值随着能量降低显著减少

D.在5cm范围内,剂量分布几倍遵守平方反比规律

E.剂量率常数随着能量和组织结构变化

答案

参考答案:E

单项选择题
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.