A:注意要有消费者
B:要把生产者的数量多一些
C:不同物种生物之间的相互关系和比例
D:只要生产者和消费者就可以了
从方框中选择适当的词, 并用其适当形式填空。
interesting, five, begin, race, more
My favorite festival of the year is the Dragon Boat Festival. It is on lunar May ____. I can eat ____ zongzi on this day. And I can also watch dragon boat ____ near my home. It's very ____. The festival means the ____ of hot summer. We usually have a big dinner in the evening.