Listen again to part of the talk．Then answer t
问题详情
Listen again to part of the talk．Then answer the question． What does the professor imply about hummingbirds？
A．They are a source of food for insects and spiders．
B．Their diet is not restricted to flower nectar．
C．They obtain protein from eating flower seeds．
D．Their behavior. cannot be explained scientifically．请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
解析：Listen again to part of the talk. Then answer the question.
"But along with drinking nectar, hummingbirds will also grab any insect they meet. As they flit from flower to flower, they consume the flower's nectar as well as insects and spiders that provide them with protein."
What does the professor imply about hummingbirds?
The professor implies that the diet of hummingbirds is not restricted to flower nectar because hummingbirds will also grab any insect they meet. In addition to nectar, hummingbirds eat insects and spiders. (2.4)
