(1)看黑板时,黑板上的文字反射来的光线依次经过角膜、瞳孔、晶状体和玻璃体,然后在
(2)从老师的声音到听觉形成需经过:外耳道→鼓膜→听小骨→耳蜗内的听觉感受器→听觉神经→
(3)看、听、写等活动要同时完成,需要各器官协调配合,这主要受到
(4)上课被老师点名抽问时,我们会马上起立,这一过程属于
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2