Up to now, our society ________ with limited living space and a shortage of natural resources. A．has been challenged B．is being challenged C．is challenging D．has challenged
Up to now, our society ________ with limited living space and a shortage of natural resources.
A、has been challenged
B、is being challenged
C、is challenging
D、has challenged
发布时间：2025-06-29 23:16:08
