题干
The room is too small and it is not fit_________.
A：to be worked i
B：to work i
C：to work
D：to be worked
答案(点此获取答案解析）
B
A：to be worked i
B：to work i
C：to work
D：to be worked
关系，则物种A与物种B之间信息传递的方向是 ( )
