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【单选题】
对血友病类型鉴别最有意义的实验室检查是（ ）。
A.
阿司匹林耐量
B.
凝血活酶生成试验及其纠正试验
C.
凝血时间
D.
凝血酶原时间纠正试验
E.
凝血酶凝固时间测定
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参考答案：
举一反三
【单选题】关于血友病儿童的口腔治疗原则，叙述错误的是（）
A.
行下颌阻滞或上牙槽阻滞，凝血因子浓度应达到50％水平
B.
可以在局部麻醉下行活髓切断术或牙髓摘除术
C.
乳牙正常脱落通常不会导致出血
D.
可行洁治术
E.
可行正畸治疗
【单选题】Defective Genes and Human Health Each of us carries about half a dozen defective(有缺点的) genes. We remain blissfully(快乐地) unaware of this fact unless we, or one of our close relatives, are amongst the m...
A.
Genetically engineered proteins are better than blood products in treating hemophilia.
B.
Only those who suffer from a genetic disease carry about half a dozen defective genes.
C.
The Y chromosome males have are from their fathers.
D.
Whether a defensive gene produces ill effects has something to do with the environment in which the gene operates.
相关题目：
【单选题】关于血友病儿童的口腔治疗原则，叙述错误的是（）
A.
行下颌阻滞或上牙槽阻滞，凝血因子浓度应达到50％水平
B.
可以在局部麻醉下行活髓切断术或牙髓摘除术
C.
乳牙正常脱落通常不会导致出血
D.
可行洁治术
E.
可行正畸治疗
【单选题】Defective Genes and Human Health Each of us carries about half a dozen defective(有缺点的) genes. We remain blissfully(快乐地) unaware of this fact unless we, or one of our close relatives, are amongst the m...
A.
Genetically engineered proteins are better than blood products in treating hemophilia.
B.
Only those who suffer from a genetic disease carry about half a dozen defective genes.
C.
The Y chromosome males have are from their fathers.
D.
Whether a defensive gene produces ill effects has something to do with the environment in which the gene operates.
参考解析：
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