2.某生物的基因型为AaBB，通过某些技术可分别将它转变为以下基因型的生物

①AABB；②aB；③AaBBC；④AAaaBBBB。则以下排列正确的是

A．诱变育种、基因技术、花药离体培养、细胞融合

B．杂交育种、花药离体培养、转基因技术、多倍体育种

C．花药离体培养、诱变育种、多倍体育种、转基因技术

D．细胞融合、杂交育种、诱变育种、多倍体育种

1．在将动物组织块分散成单个细胞时，可以使用胰蛋白酶。由此不可以推测出的是

A．动物细胞之间可能依靠蛋白质相互联系　

B．处理时一定要注意处理时间、加酶量

C．胰蛋白酶一定不会对动物细胞造成损伤

D．动物细胞培养液pH应与胰蛋白酶作用的适宜pH基本一致

据报道，法国生产汽车的雪铁龙公司(Citroen)在广告中使用了我国领导人毛泽东的照片。此事在我国网民中引起了激烈的争论。请你根据下面的调查表所提供的信息，给某英文杂志社写一篇文章，简要叙述此事件并发表自己的看法。

被调查者的态度　　 所占比例

抗议使用　　　　　 45．3%

不反对使用　　　　 41．6%

无所谓　　　　　　 13．1%

要求：

　　 1.行文应连贯流畅，内容要充实完整；

　　 2. 词数100-120字之间，

It is reported that the French ear-maker Citroen has used the photo of the late Chinese leader Moo Zedong in the advertisement. This amused heated discussions among Chinese Internet users.

　　 This is a story told by my father: When I was boy, the most exciting thing was when to celebrate the Spring Festival. My grandma was the best cooker in th world but could make the most delicious dishes. Once, I just couldn’t wait for the Spring Festival dinner. As I was about take a piece from a cooked duck, I saw Grandma in the kitchen looking at me. Shake his head, she said, “It’s not a good time to do that, .” I apologize and controlled me at the best till the dinner started. You know, that was a dinner we had waited for several month.