- 搜標題
- 搜題干
- 搜選項
單項選擇題
孵化期間失重前期較少后期較多，雞蛋失重一般為（）
A.5%~6%
B.7%~8%
C.9%~10%
D.10%~12%
E.12%~14%
A.5%~6%
B.7%~8%
C.9%~10%
D.10%~12%
E.12%~14%
