Soap operas have helped in lowering Brazil's birth rate because ______.
A.they keep people sitting long hours watching TV
B.they have gradually changed people's way of life
C.people are drawn to their attractive package
D.they popularize birth control measures
第5题
下列关于耳蜗的叙述,不正确的是 ()
A、前庭阶和鼓阶的外淋巴经蜗孔相通
B、骨蜗管内有前庭阶、中阶和鼓阶3个管腔
C、耳蜗底周靠近咽鼓管鼓室口,蜗顶相当于鼓岬
D、蜗神经纤维通过蜗轴和骨螺旋板相接处的许多小孔到达螺旋神经节
E、耳蜗主要由中央的蜗轴和周围的骨蜗管组成
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