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【单选题】Mental Retardation (智力迟钝)Mental retardation is a condition in which people have lower than normal intelligence and are unable to function at the level expected for their age．People with mental retarda...
A.
was born prematurely.
B.
has lower than normal intelligence.
C.
has low intelligence and low daily living skills.
D.
has normal intelligence but difficulties in learning.
【单选题】"短头畸形"的颅缝闭合特点为（）
A.
冠状缝、人字缝提早闭合
B.
矢状缝、人字缝提早闭合
C.
顶颞缝、矢状缝提早闭合
D.
矢状缝、冠状缝提早闭合
E.
偏侧颅缝提早闭合