与血栓的形成无关的是
A.心血管内膜损伤B.外源性凝血因子被激活C.血流缓慢或涡流D.内源性凝血因子被激活E.血流加快
参考答案:E
— Liu Yi, do you miss your parents? I hear that you go back home once every month.
— Of course. You know this is the first time I _____ in the dormitory at school, far away from my
hometown, Luoyang. [ ]
A. have stayed
B. stayed
C. stay
D. am staying
结构化开发方法中,数据流图是______阶段产生的成果。
A.需求分析
B.总体设计
C.详细设计
D.程序编码