题目内容：
根据以下内容，分别回答问题。Photodetectors，whichare alo __________ light sensors，have a variety of practical uses，from pausing your garage door if you’rebeneath it to lighting your way along a dark driveway．
参考答案：
答案解析：
简答题：根据以下内容，分别回答问题。Photodetectors，whichare alo __________ light s
- 题目分类：GRE
- 题目类型：简答题
- 查看权限：VIP
Photodetectors，whichare alo __________ light sensors，have a variety of practical uses，from pausing your garage door if you’rebeneath it to lighting your way along a dark driveway．