母马体细胞中有两个染色体组,染色体数目为64条;公驴体细胞中也有两个染色体组,染色体数目为62条。则母马与公驴杂交后代骡体细胞中的染色体数组数和染色体数目分别是( )
( )一条黑白相间的短裙 A. a black and red skirt B. a black and white skirt C.a black and white T-shirt
( )一顶红色的鸭舌帽 A.a red T-shirtB.a red cap C.a yellow cap
( )一件绿色的夹克衫 A.a white jacket B.a green jacket C.a red skirt
情景对话。 ()(1)颜色应该说: ()(2)向别人介绍自己的妈妈应该说: ()(3)和王兵打招呼应该说: ()(4)早上见王老师应该说: ()(5)和同学告别应该说:
E. Hi, Wang Bing.
从Ⅱ栏中选出与Ⅰ栏相对应的答句,将其序号填在题前的括号内。 I ( ) (1) Look at my new skirt. ( ) (2) What colour is your jacket? ( ) (3) Good afternoon, Miss Li. ( ) (4) Would you like an egg? ( ) (5) Hi, are you Sam? II
E. Yes, please.