A.张华婉拒同学的赠礼,同学说:“你就收下吧,千万不能辜负我的一片美意啊!” |
B.毕业晚会上,李洁发言:“本人才疏学浅,这不过是抛砖引玉,敬请洗耳恭听。” |
C.赵军去买菜,他与菜农讲价:“白菜鲜美,吾购意甚诚,望君体察,价廉些许。” |
D.王明给小学老师打电话:“离开您三年了,一直牢记您的教诲,不敢稍有懈怠。” |
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