暴雨像是马上就要来了。有大滴大滴的雨敲打着玻璃,视线中的物什渐渐模糊起来。心尖儿上,牵挂着那一串花朵的去向,像心疼一个身世飘摇的同类。顷刻之间,狂风肆意,高楼呼啸。雨声渐疏时,我急急地开了窗。正好有两朵花落下,我说不清应该描述为惊艳的舞蹈,还是绝望的告别。可我似乎听见,它们呼啦啦地喊了几声母土的魂,就恓惶地扑向楼下的土地,碾作泥尘,护花;或是被另一阵风吹走。
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