听力原文: Finance ministers from the world's major economies met Saturday in Washington, and pledged to redouble their efforts to speed world economic growth.
What is called the Group of Seven finance ministers meet regularly to set policy direction for the International Monetary Fund, in which they are the dominant shareholders. The group of seven includes the United States, Japan, Germany, France, Britain, Italy and Canada.
Russia's finance minister, Alexei Kedrin, who attended a portion of the meeting, said Russia has no intention of following the OPEC cartel in cutting oil production.
Canada's finance minister, Paul ~le, said there is concern about the potentially destabilizing global impact of the large U. S. budget deficit. But he is encouraged by assurances from U. S. Treasury Secretary John Snow, that the U. S. deficit will come down.
"He has repeated the United States determination to make progress in that regard," he said. "And he has a plan and a time frame. to at least cut that deficit in half in the next number of years. That certainly would be helpful."
During two days of meetings, world finance ministers are also discussing debt problems of the poorest countries. The head of the African Development Bank, Omar Kabhaj, says the poorest countries need more debt relief. But he identifies one group of African countries that have been growing at five percent annual rates and reducing poverty.
The Group of Seven finance ministers regularly meet to ______.
A.discuss how to promote international economic growth
B.set policy direction for International Monetary Fund
C.talk about how to meet the challenges posed by globalization
D.discuss how to control production
第1题
A.钆喷替酸葡甲胺与大分子蛋白质的结合物
B.锰螯合物,如Mn-DPDP
C.钆螯合物,如Gd-EOB-DTPA
D.极小的超顺磁氧化铁颗粒
E.超顺磁氧化铁颗粒,如AMI-25等
第2题
关于MR对比剂的描述,错误的是
A、MR对比剂一般无需做过敏试验
B、MR对比剂非常安全,没有任何不宜使用的人群
C、哺乳期妇女在用药24h后方可哺乳
D、MR对比剂的用量为0.1mmol/kg
E、MR对比剂的用量为0.2ml/kg
第3题
A.选用肝细胞选择性对比剂(如Mn-DPDP等)进行强化扫描时,不含肝细胞的肿瘤常表现为低信号
B.SPIO主要为T1弛豫增强对比剂,表现为在T1WI上降低含网状内皮细胞的肝组织的信号强度
C.Gd-DTPA为非特异性细胞外间隙对比剂
D.USPIO是兼有早期血池效应及晚期网状内皮细胞选择性的对比剂
E.Gd-BOPTA是兼有细胞外液分布特性及晚期肝细胞选择特性的对比剂,在延迟期(45min~2h)图像有助于判别肿瘤是否含有正常功能的肝细胞
第4题
有关MR血管造影下列论述错误的是
A、无需向血管内注射对比剂
B、仅向血管内注射少量对比剂
C、简单安全,属于无创性检查
D、常用技术有时间飞跃和相位对比
E、适用于各种血管病变的检查
第5题
A.适用于各种血管病变的检查
B.仅向血管内注射少量对比剂
C.无需向血管内注射对比剂
D.常用技术有时间飞跃法和相位对比方法
E.简单安全属于无创性检查
第6题
A.适用于各种血管病变的检查
B.仅向血管内注射少量对比剂
C.无需向血管内注射对比剂
D.常用技术有时问飞跃法和相位对比方法
E.简单安全属于无创性检查
第7题
A. 适用于各种血管病变的检查
B. B.仅向血管内注射少量对比剂
C. C.无需向血管内注射对比剂
D. D.常用技术有时间飞跃和相位对比
E. E.简单安全属于无创性检查
第8题
MR水成像具有的优点不包括
A、为无创性技术,无需插管,也无操作技术问题
B、安全,不用对比剂,无对比剂副反应问题
C、获得多层面、多方位图像
D、适应证广
E、成像时间短
第10题
离子型对比剂引起副作用的机制不包括:
A.高渗性使血浆渗透压和血容量升高
B.高渗性使血管内皮细胞脱水
C.高离子状态使其分子与血液中钙离子结合
D.弱亲水性增加了药物的化学毒性
E.离子型对比剂不能破坏血脑屏障
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