(______)1.一页一页翻开来,有图有字真精彩。如果和它做朋友,你会聪明又可爱。
A. book B. pen
(______)2.身体细又长,彩衣黑心肠。嘴尖说黑话,见短不见长。
A. pen B. pencil
(______)3.硬舌头,尖尖嘴。不吃饭,光喝水。
A. ruler B. pen
(______)4.分明是你错,倒来折腾我。你倒清白了,把我皮擦破。
A. eraser B. book
(______)5.生来正直,不肯弯曲。要走直路,找我没错。
A. ruler B. pen
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