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【单选题】
溶血反应时出现黄疸和血红蛋白尿的机理是A.
红细胞凝集成团，阻塞部份小血管
B.
凝集的红细胞发生溶解，大量血红蛋白释放入血浆
C.
血红蛋白变成结晶体，阻塞肾小管
D.
肾小管皮质，缺氧而坏死脱落
E.
红细胞破坏释放凝血物质引起DIC
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举一反三
【单选题】采用构件式开发方式是当前应用开发工具的发展趋势，下列不属于构件式开发的优点的是( )。
A.
优化开发的代码，
B.
提高应用的开发效率
C.
提高应用的运行效率
D.
降低软件维护费用
【单选题】It's _____ book that I keep _____ it in my free time. [ ]
A.
so a meaningful; reading
B.
such a meaningful; read
C.
so a meaningful; read
D.
such a meaningful; reading
【单选题】I ________ to help you with your homework, but I couldn’t spare any time. I ________ a composition last night and I’ll finish it today.
A.
wanted; wrote
B.
had wanted; was writing
C.
have wanted; wrote
D.
wanted; have been writing
【单选题】What cause our lack of confidence in this purchase are the______ of the machine: large consumption of energy, need of frequent maintenance and high price.
A.
merits
B.
handicaps
C.
bruises
D.
drawbacks
【单选题】I _____ to help you to do homework but I couldn’t spare any time. I _____ a composition last night and I’ll finish it today.
A.
wanted; wrote
B.
had wanted; was writing
C.
have wanted; wrote
D.
wanted; have been writing
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