1.教夜课的是东庄学堂里的女老师,穿着青布裤褂,胖胖的,剪着短发。(_________)
2.太阳已经落下去。蓝蓝的天上飘着的浮云像一块一块红绸子,映在还乡河上,像开了一大朱一大朵鸡冠花。(_________)
3.我把他抱了起来,他勇敢地抓住窗框,两只脚有力地蹬着车厢,攀上了窗口。(_________)
4.他神情有点儿紧张,勇敢地开口了:“同志,买,买,买……”(_________)
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