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问题 单项选择题

血友病A患者哪项实验检查异常( )

A．APTT

B．PT

C．TT

D．3P

答案

参考答案：A

解析：血友病A是血浆中缺少因子Ⅷ，影响内源性凝血系统，应选A。PT检查外源性凝血系统，TT检查纤维蛋白原及抗凝物质等，3P主要检查有无纤溶。

问答题 简答题

如何根据心力衰竭的程度安排患儿休息？
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单项选择题

The development of e-commerce may well bring the world into a brand new era of "electronic currency". At the moment, (52) areas in Europe, the United States and Asia have already started studying the possibility of an electronic currency. Electronic currency is not only about currency. It (53) to an entire finance system on the Net. It includes a virtual numeric currency, an electronic system of withdrawals, transfers and loans, and (54) cards of all shapes and sizes. The (55) of an electronic currency system implies the emergence of "virtual banks" and "virtual enterprises". Actually, the first virtual bank appeared in the US in 1995. (56) it is a small and insignificant bank, it represents the trend of the future. In time to come, we may even have to (57) the familiar paper currency.

As the Net pushes the economy (58) rapidly, the economy is also bringing the Net market forward, resulting in the Internet itself becoming the world’s largest emerging market. Of course, this is just the beginning. Although there are many companies which made huge profits (59) in the Internet market, they tend to be small companies. To date, most companies are making losses. The competition in the knowledge-based economy will also be more (60) This will definitely promote (61) and more efficient cooperation.

59().

A.invested 

B.comparing 

C.investing 

D.compared
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