生殖器疱疹是由______所引起的一种______疾病。
参考答案：单纯疱疹病毒‖性传播
— David, could I use your car?
— Sorry, there is something wrong with it.I will have it________this afternoon. [ ]
A. repair
B. to repair
C. repairing
D. repaired
砌筑稍潮湿房间的砖墙，其砂浆最低强度等级为()。
A．M1
B．M2．5
C．M5
D．M10
