下列有关生物工程中相关知识的叙述,不正确的是( )
A:蛋白质工程改造或制造蛋白质,必须通过基因修饰或基因合成来实现
B:动物细胞培养液中通常含有葡萄糖、氨基酸、无机盐、生长素和肾上腺素等
C:胚胎移植中受体母畜必须处于与供体母畜同期发情的状态
D:生态工程追求经济与生态的双赢,实现了能量的多级利用
C
My family lives in London. In the morning, my father goes to work and we go to school. My father takes us to school every day. My mother stays at home. She does the housework. She always has lunch at home, and visits her friends in the afternoon. In the afternoon, we go home from school by bus. My father gets home from work late. At night my two brothers and I always do our homework. We go to bed at about ten. My father and my mother usually read newspapers. We can watch TV at the weekend.
【写法借鉴】诗人运用拟人、比喻等修辞手法来表达对故土的留恋。如“北京在我的脚下,已经缓缓地移动”“永远记着我,妈妈啊北京!”这样能增强诗歌的感染力,这是同学们需要学习借鉴的。
【片段仿写】请你选择一个具体的事物,运用拟人、比喻等修辞手法来表达你的留恋或思念之情。