(1) 一个姑娘说:“这首曲子多难弹啊!我只听别人弹过几遍,总是记不住该怎样弹,要是能听一听贝多芬自己是怎样弹的,那有多好啊!”( )
(2)皮鞋匠看见进来个陌生人,站起来问:“先生,您找谁?走错门了吧?”( )
(3) 她激动地说:“弹得多纯熟啊!感情多深哪!您,您就是贝多芬先生吧?”( )
(4) 一个男的说:“是啊,可是音乐会的入场券太贵了,咱们又太穷。”( )
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