A.那人巧舌如簧,把百花草说得能包治百病,一些围观的老人纷纷开始购买。 |
B.这次征文比赛,我拿了一等奖。好朋友彭紫嫣语重心长地对我说:“祝贺你!” |
C.比赛双方摩拳擦掌,跃跃欲试。 |
D.以后到了济南,才见到山,恍然大悟:山原来是这个样子啊! |
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