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问题 单项选择题

关于慢性型特发性血小板减少性紫癜，哪一项是对的（）

A.好发于青春期女性

B.常见皮下血肿

C.血小板寿命一般在8～12天

D.大多数病人PAIg及PAC3阳性

E.多数病人仅生存3～4年

答案

参考答案：D

单项选择题

In theory, Ecuador could be a major exporter of shrimp. In actuality, it is not. The explanation is that 80 percent of the country’s rich estuaries are owned by the government. This hurts Ecuador’s shrimp production, because the government does not have the flexibility necessary for efficient shrimp farming that private industry possesses. The answer to which of the following questions would be most relevant to evaluating the adequacy of the explanation given above ？（）

A. Who owns the 20 percent of estuaries that are not owned by the government

B. What percentage of Ecuador’s production of shrimp is consumed domestically

C. Has the government stated any plans to sell any of its estuaries to private industry, provided that the price is sufficient

D. Is Peru, Ecuador’s neighbor to the south, actually better suited for commercial shrimp farming than Ecuador, which is a substantially smaller country

E. How does Ecuador’s shrimp production on government-owned estuaries compare to that on comparable land owned by private industry
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单项选择题

某胃癌患者，经胃镜证实胃小弯直径约1cm癌性溃疡，无出血，CT检查无腹腔淋巴结转移。左锁骨上淋巴结未扪到。治疗宜采用（）

A.根治性手术

B.姑息性手术

C.钻-60治疗

D.联合化疗

E.中药调理
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