英版《潮汐表》有()索引? Ⅰ主港索引Ⅱ附港索引Ⅲ地理索引Ⅳ關(guān)鍵詞索引
A.Ⅰ、Ⅱ、Ⅲ B.Ⅰ、Ⅱ、Ⅳ C.Ⅱ、Ⅲ D.Ⅰ、Ⅲ
A.緩慢 B.時(shí)快時(shí)慢 C.最快 D.最慢
A.低潮潮高+潮差×[1+cos(t/T×180°)]/2 B.高潮潮高+潮差×[1-cos(t/T×180°)]/2 C.高潮潮高-潮差×[1+cos(t/T×180°)]/2 D.低潮潮高+潮差×[1-cos(t/T×180°)]/2