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A human fetus has fingerprints after three months.
人类胚胎在三个月大时就有指纹了。
youdao
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Objective: To explore the process of genesis and development of long bone of human fetus.
目的探讨人胚胎长骨的发生及发育过程。
youdao
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Objective: To explore the process of genesis and development of long bone of human fetus.
目的探讨人胚胎长骨的发生及发育过程。
youdao