题文
AIDS control and prevention is a ___ to China as well as the whole world.
| A．surprise |
| B．challenge |
| C．reaction |
| D．threat |
推荐试卷
AIDS control and prevention is a ___ to China as well as the whole world.
| A．surprise |
| B．challenge |
| C．reaction |
| D．threat |
试题篮
()
粤公网安备 44130202000953号
