A.35cm,1000g B.45cm,2500g C.16cm,110g D.25cm,320g E.50cm,3400g 孕20周胎儿身长、体重为

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问题 A.35cm,1000g
B.45cm,2500g
C.16cm,110g
D.25cm,320g
E.50cm,3400g
孕20周胎儿身长、体重为

选项 A、 
B、 
C、 
D、 
E、 

答案D

解析
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