1.由连云港通往鹿特丹的“新亚欧大陆桥”陆上通道,在国内段从连云港到乌鲁木齐的 铁路干线是
A.陇海---兰新线 | B.京哈线 | C.中巴线 | D.京广线 |
A.海陆分布 | B.纬度位置 | C.地形因素 | D.人为活动 |
A.马六甲海峡 | B.霍尔木兹海峡 | C.白令海峡 | D.苏伊士运河 |
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