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【单选题】
常用于轴的中部和端部,装拆方便,能承受较大的轴向力的是 ( )
A.
轴肩 ( 环 )
B.
轴端挡圈
C.
轴套
D.
圆螺母
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B.
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D.
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B.
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C.
青光
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【单选题】多基因遗传病患者的同胞发病风险是( )
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50%
B.
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【简答题】项目三 Potoshop 工具相关理论知识小测验(题目).doc
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【多选题】多基因遗传病的特点是( )。
A.
有家族聚集倾向
B.
发病率有种族差异
C.
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D.
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【单选题】糖尿病是一种多基因遗传病，一般人群中的发病率为0.2%，遗传率为75%，患者同胞弟弟的再发风险是
A.
1/2
B.
4.47%
C.
0.2%
D.
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【单选题】听力原文： The key question for any only child is this: Why were you an only child? It's a key question for at least two reasons. If your parents had wanted several children, but could have you only, they ...
A.
Those who are themselves spoiled and self-centered.
B.
Those who expected to have several children but could only have one.
C.
Those who like to give expensive jewels to their children.
D.
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【单选题】听力原文： The key question for any only child is this: why were you an only child? It's a key question for at least two reasons. If your parents had wanted several children but could have you only, they a...
A.
Those who are themselves spoiled and self-centered.
B.
Those who expected to have several children but could only have one.
C.
Those who like to give expensive jewels to their children.
D.
Those who give birth to their only children when they are below 30.
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A.
7 6 %
B.
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C.
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D.
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【单选题】听力原文： The key question for any only child is this: why were you an only child? It's a key question for at least two reasons. If your parents had wanted several children but could have only you, they a...
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【单选题】糖尿病是一种多基因遗传病，一般人群中的发病率为0.2%，遗传率为75%，患者同胞弟弟的再发风险是
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【单选题】听力原文： The key question for any only child is this: Why were you an only child? It's a key question for at least two reasons. If your parents had wanted several children, but could have you only, they ...
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【单选题】听力原文： The key question for any only child is this: why were you an only child? It's a key question for at least two reasons. If your parents had wanted several children but could have you only, they a...
A.
Those who are themselves spoiled and self-centered.
B.
Those who expected to have several children but could only have one.
C.
Those who like to give expensive jewels to their children.
D.
Those who give birth to their only children when they are below 30.
查看完整题目与答案
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A.
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B.
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C.
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D.
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