问题
单项选择题
活化部分凝血活酶时间测定阳性率最高的是( )
A．多种凝血因子缺乏
B．循环抗凝血素的增加
C．甲型和乙型血友病
D．接触因子(Ⅺ、Ⅻ)缺乏
E．血管性假血友病(VW)
答案
参考答案：C
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活化部分凝血活酶时间测定阳性率最高的是( )
A．多种凝血因子缺乏
B．循环抗凝血素的增加
C．甲型和乙型血友病
D．接触因子(Ⅺ、Ⅻ)缺乏
E．血管性假血友病(VW)
参考答案：C
短文填空：从下列方框中选择正确的单词或短语，并用其正确形式填空。注意：①每个词只能用一次。②每空限填一词
Many Chinese students ____小题1:_____learn English for many years still can’t speak good English. This is common among Chinese students. They ______小题2:______reading and writing, but their spoken English is poor. The____小题3:_____ is that they don’t often speak English. They only learn English by reading and writing it, not by speaking it. They are too shy to speak English in front of others and they ____小题4:___making some mistakes, too. How can one speak English well? First, don’t be shy to speak English. Secondly, practice speaking English_____小题5:_______. |