下图是某家族性遗传病的系谱图,假设该病受一对基因A、a控制。请回答:
Ⅲ10的基因型可能是(),她是杂合子的概率是()
参考答案:AA或Aa;2/3
哪些是输卵管结扎术后可并发异位妊娠的原因
A.绝育术时已受精
B.与结扎方式有关
C.双扎切断法易并发异位妊娠
D.保留输卵管过长
E.术后感染
After the new equipment was introduced,they produced________machines this year as the
year before.[ ]
A.as twice many
B.as many twice
C.twice as many
D.twice many as