A-A+
The purpose of installing electric eyes along
问题详情
The purpose of installing electric eyes along the main roads is to make sure that all vehicles __________ follow traffic rules.
[A] cautiously
[B] dutifully
[C] dubiously
[D] skillfully 请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：B
译文：在主干道上安装电子眼的目的就是确保所有的车辆都能忠实地遵守交通规则。副词辨析题。cautiously意为“慎重地，小心地”；dutifully意为“尽职地，守本分地”；dubiously意为“可疑地，怀疑地”；skillfully意为“灵巧地，熟练地”。根据句意，答案为[B]。
