试题与答案

受精卵() A.精子与卵子结合 B.受精卵女性子宫内孕育成胚胎、胎儿直至分娩的整个过

题型:单项选择题

题目:

受精卵()

A.精子与卵子结合

B.受精卵女性子宫内孕育成胚胎、胎儿直至分娩的整个过程,既是生育的全过程

C.胎儿娩出后母亲要哺乳,保证新生儿正常发育成长

D.计划生育既要控制人口数量,又要提高人口素质

E.计划生育只要控制人口数量

答案:

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