定位词

In this method, a laser is used to create a line of ionization by removing electrons from________.  

以下在题干中出现会用优先用来作为定位词的是（都是名词）：

People feel more strongly about language education than about small differences in language usage. 

Consumers prefer theme parks which avoid serious issues. 

The probe transmitted pictures of both  ...................... and ......................