鱼的内耳由3个（）、1个（）、1个（）构成。
参考答案：半规管；椭圆囊；球状囊
Internet（因特网）上最基本的通信协议是ftp。（）
—When will you be through with your work．Jones —（）My boss usuallY finds something for me to do at the last minute．
A．Who knows
B．Would you help me
C．I beg your pardon
D．Anything the matter
