The only ______in his character seems to be a short temper.
A. flawless
B. frown
C. floe
D. flaw
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I had a(an)______that we would find them there.
A. fancy
B. intuition
C. tuition
D. imagination
1.受精第()日,受精卵着床
A. 6-7日
B. 7-8日
C. 8-10日
D. 10-12日
2.受精第()周内称为胚胎,受精后第---周起称为胎儿()
A. 7周;8周
B. 8周;9周
C. 9周;10周
D. 6周;10周
3.妊娠足月的羊水量约()(
A. 1000ml
B. 1200ml
C. 800ml
D. 600ml