具有滋阴补肾功能的药是
A．虫蛀B．霉变C．酸败D．挥发E．沉淀
参考答案：D
After that we never saw her again, nor ____ from her. [ ]
A. did we hear
B. we heard
C. had we heard
D. we have heard
餐厅背景音乐的音量要适中，曲目要合适，餐厅内噪音不得超过（）
A、40分贝
B、50分贝
C、60分贝
D、80分贝
