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【单选题】
出血时间测定延长可见于A.
Ⅷ、Ⅸ、Ⅺ因子缺乏
B.
凝血酶原、纤维蛋白原减少
C.
止血初期缺陷
D.
Ⅻ因子活化
E.
血管脆性增加
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【简答题】完型填空。 Steve and Mark were good friends. They decided to spend their vacation in Haiti. Since they 1 no French, they took a French word book with them and hoped it would help them in difficult situatio...
【简答题】完型填空。 Today is September 10th ,Teachers' 1 , and it's Sunday. So there are 2 people in the park. Miss Gao and her students are in the park ,too.Look ! Miss Gao is playing s 3 her students. They ha...
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【简答题】完型填空 Christmas is on December 25th. It's my favourite 1 . In the morning my parents often 2 the house. My brother and I often 3 t he Christmas tree with lights. Then we put a star 4 the top(顶部) of th...
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【单选题】所谓内接多边形是( )
A.
多边形在圆内，多边形每边的中点在圆上
B.
多边形在圆外，多边形的顶点在圆上
C.
多边形在圆内，多边形的顶点在圆上
D.
多边形在圆外，多边形每边的中点在圆上
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