森林枯枝落叶层中可发现多种生物，其中属于初级消费者的是[ ] _爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

森林枯枝落叶层中可发现多种生物，其中属于初级消费者的是[ ]

A．白蚁

B．蚯蚓

C．蜘蛛

D．蛇

答案

答案：A

填空题

从方框中选择适当的单词完成短文。

are; isn't; am; is; aren't

I (1) _____ from Shanghai, and Shanghai (2) _____ a big city. My mother and father (3) _____
English teachers. Tina is my good friend. We (4) _____ in the same class. I'm in Class Two and Tina is
in Class Five. Tina (5) _____ from Shanghai. She is from England.
1._____2._____3._____4._____5._____

名词解释

共变法