(1)电话铃响了,你拿起听筒,只听对方说了一声“喂!”
你说:
(2)你去书店买书,发觉女售货员正在闲聊,没注意到你的需要,
你说:
(3)你买了书回家,发觉售货员少找了你三元钱,你返回书店说:
(4)你买书又返回书店找钱,竟忘了你爸爸打给你的电话,要你做晚饭给奶奶送去 ,回家后,你爸爸责备你,你说:
(5)晚上6:30,你端着做好的饭菜送到奶奶床前,看到奶奶中午的饭也没吃完,奶奶胃口不好吃不下,让你端走,你说:
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