阅读对话,判断句子理解的正误。
Xiao Qiang: Where is the school, John and Lucy?
John: Sorry! I don't know.
Lucy: There it is.
Xiao Qiang: Thanks. See you later.
John and Lucy: Goodbye.
C.选修3-5
使用显微镜时,进行对光,依次调节哪些结构( )