为什么AB血型和O血型的父母所生的子女的血型不会是AB型呢?
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Why doesn't the man like the book?
[A] It is not interesting.
[B]It is too long.
[C]It is too difficult.
If you ask an American how far it is from the next village, he will
.
[ A] tell you the exact distance if he knows it
[ B] tell you it is close although he knows it isn ' t
[C] say that he doesn' t know and encourage you to go on
[D] decide whether you are tired or not, and then give you an answer
一红褐色奶牛生产出一红色牛犊,分析该牛犊是雄性还是雌性?已知AA为红褐色,aa为红色,Aa雌为红,雄为红褐色。
[ A] clerk
[ B] salesperson
[ C] owner
[ D] host