夜色静美,浅浅的月光旖旎在初春深夜,西藏的旷漠依然寒意料峭。放眼天空,满天星斗,弯月藏在何处?在纯纯青蓝间嵌上了无数点点星星,我在仰望天空轮月,缕缕月辉洒满我的素衣,惬意无眠。
窗外,月光很明亮,使这早已经沉睡了的夜空,变得晶莹剔透。对面不算太高的楼房洁白的外墙,把这明亮的月光,反射了过来,和着马路上有些刺眼的路灯光,直照得房间里跟白天没有多少区别。
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