A.“光的速度是惊人的,大约是30万千米每秒”中“大约”一词说明用词不准确 |
B.民间故事一般有固定的类型和重复的段落,既方便记忆和讲述,也能加深听众的印象 |
C.“有志则断不甘为下流”中的“断”和“下流”的意思和现在的常用义不一样 |
D.“母亲掏衣兜,掏出一卷揉得皱皱的毛票,用龟裂的手指数着”属于细节描写 |
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