题目

Mr. Guo is a teacher from Xi’an. He asked his students to hand in their homework through a QR Code (二维码). “We spent an hour or two in class leaning how to generate(使产生) the codes, and in the end everything gets easier,” said Guo. “When students finish the homework, they keep it on WeChat. Then, each student makes his own QR code and gives it to me. So I can check their work everywhere using my computer or telephone.”The QR codes can be sent to Mr. Guo by email, QQ and WeChat. When Guo scans (扫描) his students’ QR codes, their homework appears on his phone. He finds t我国与香港、澳门特别行政区毗邻的省区是 （ ）A. 广东省 B. 广西 C. 福建省 D. 湾省