( )是嗅觉的感受器。
A．前庭器官B．科蒂氏器官C．鼻腔上膜的嗅细胞D．半规管
参考答案：C
Could I have a cigarette? I seem_________.
A．to run out
B．to have run out
C．to have run out of
D．to have been run out
手机邮箱业务和BlackBerry业务都是中国移动自有业务。（）
