【单选题】Stop asking all these personal questions! It is bad manners to be ______.
【单选题】It is bad manners to ________an invitation without a reason.
【单选题】关于内耳,正确的是:
B.
骨迷路分为:前庭、耳蜗、半规管;膜迷路包含在骨迷路之中
C.
位于膜蜗管(中阶)下壁基底膜上的螺旋器(Corti器)是听觉感受器
【判断题】听觉感受器为螺旋器,位于前庭的基底膜上。( )
【单选题】It is bad manners to ______ other people behind their backs.