简述油菜杂种优势利用的途径。
参考答案：
自交不亲和系杂种，化学杀雄杂种，细胞核雄性不育杂种，细胞核雄性不育杂种，质核互作雄性不育系杂种。
根据语境，用恰当的语言完成对话。
—Hi! Good morning!
—Good morning! 1.__________
—My name is Jim. Nice to meet you.
—2.__________
—Excuse me. 3.__________ an English book?
—Yes, I do.
—Is that your English book?
—No, it isn't.
—4.__________
—It's on my table.
—Is that your table?
—5.__________ You can go (去) there and get (拿) my book.
—Thank you.
孙某如对赔偿数额有异议，应遵循什么程序予以救济
