从方框中选择正确选项．并将其字母序号写在对话后面的空格内。(方框中有一个选项与对话内容无关)
A．Why do you want Io be a basketball player?
B．Think it over!
C．No．I don’t want to talk with them．
D．But it’s not everything．
E．Do you have a plan for the future?
F． Yes．many times． |
Celia: Hi Tony! You look upset. What's wrong?
Tony: I failed the exam again. I'm afraid I have to give up my study.
Celia: No, never. If you do that, you will let your parents down. ____
Tony: Yes. I want to practice basketball and become a basketball player like Yao Ming or Kobe.
Celia: ____
Tony: Because it's my dream job. If I am famous, I can make lots of money.
Celia: Money is important. ____
Tony: I know. But I want to hold on to my dream.
Celia: Have you ever talked with your parents?
Tony: ____ But they don't agree. They want me to be a doctor.
Celia: I think you'd better take your parents'advice.
Tony: Maybe you're right. But why can't 1 make my own decisions?
Celia: Come on, Tony. ____ After all, your parents have more experience.
Tony: Anyway, I’ll think about it. Thanks for your advice.
和sd
2）共同控制，两对基因独立遗传，并表现为基因互作的累加效应，即：基因型为Sd1_Sd2_的植株表现为大穗，基因型为sd1sd1Sd2_、Sd1_sd2sd2的植株均表现为中穗，而基因型为sd1sd1sd2sd2的植株则表现为小穗。某小穗水稻种子经甲磺酸乙酯（EMS）处理后，表现为大穗。为了获得稳定遗传的大穗品种，下一步应该采取的方法可以是( )
