下列实验操作中，错误的（   ）

给下列句子找到相应答语
⑴Where are you from?  ____                         A. He's a teacher.
⑵What does your father do?____                  B. She's a doctor.
⑶What does your mother do?____                C. Thank you!
⑷Nice to meet you !  ____                             D. I'm from China.
⑸Have some fruit.   ____                               E. Nice to meet you, too!

数一数,图中一共有____条线段.

如图，让一束太阳光通过棱镜射到白屏上，屏上标出了三个区域，其中能让温度计示数明显升高的区域和能识别人民币真伪的区域应该是（   ） 

已知是两条不同的直线，是一个平面，且∥，则下列命题正确的是(   )