(1)百色市多地为喀斯特地貌,水质硬度较高,可用
(2)西林砂糖桔口味甘甜,其所含营养素中含量最高的是
(3)靖西香糯种植前选种需用16%的氯化钠溶液,现用质量分数为24%的氯化钠溶液来配制该溶液的步骤为:①计算;②量取;③
(4)平果铝制品抗腐蚀性能很好,原理是

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

