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【单选题】
关于HbF定量测定(碱变性试验)的叙述，下列哪错误的A.
Hb F即抗碱血红蛋白，与其他Hb不同
B.
正常成人HbF一般＜2％
C.
重型β海洋性贫血可达30％～90％
D.
再生障碍性贫血时，HbF可增高
E.
自身免疫性溶血性贫血时，HbF可增高
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】He wanted to know ___________.
A.
whether he speaks at the meeting
B.
when the meeting would start
C.
what he’s going to do at the meeting
D.
where would the meeting be held
【简答题】下列哪项不属于社区矫正的任务?（ ）
【简答题】A．He wonders about the usefulness of the protest. B．He thinks the present tuition is fair. C．He doesn't know how many students protested. D．He doesn't know how much the school charges for tuition.
【单选题】Don't worry! He ____ no attempt to leave. He will stay here to help you.
A.
made
B.
got
C.
had
D.
Tried
【单选题】He had had a(n) ______ opportunity to get himself out of difficulty before he made that fatal mistake.
A.
feeble
B.
audible
C.
ample
D.
interim
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