A time diagram is a diagram of the celestial sphere as observed from above the ______.A.south celestial poleB.north celestial poleC.observer's meridianD.Greenwich meridian
A time diagram is a diagram of the celestial sphere as observed from above the ______.
A.south celestial pole
B.north celestial pole
C.observer's meridian
D.Greenwich meridian
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单选题A time diagram is a diagram on the plane of the（）.Acelestial meridianBcelestial equatorCcelestial horizonDprincipal vertical circle
单选题The equator is（）.Athe primary great circle of the Earth perpendicular to the axisBthe line to which all celestial observations are reducedCthe line from which a celestial body's altitude is measuredDAll of the above
单选题关于Stick Diagram，下列说法正确的是（）AStick Diagram包括了所有版图的信息。BStick Diagram的信息是不完整的，因此它对于版图没有任何帮助。CStick Diagram是版图的抽象表示，它可以帮助高效的画出版图。DStick Diagram没有层次的概念。
单选题Which of the following activities is the best for training detailed reading?ADrawing a diagram to show the text structure.BGiving the text an appropriate title.CTransforming information from the text to a diagram.DFinding out all the unfamiliar words.
单选题Which of the following activities is best for training detailed reading? _____ADrawing a diagram to show the text structureBGiving the text an appropriate titleCTransferring information from the text to a diagramDFinding out all the unfamiliar words
单选题A time diagram is a diagram of the celestial sphere as observed from above the（）.Asouth celestial poleBnorth celestial poleCobserver's meridianDGreenwich meridian