《罗摩衍那》的史诗结构是横断面式的结构。
参考答案:对
Even to many scientists, the problems resulted from the conflict between economic gains and environmental protection are simply ______.
A. insoluble B. infallible C. inferable D. ineffable
0°纬线圈(赤道)与任一条经线圈相比,以下结论正确的是()
A.等长
B.任一条经线圈较长
C.0°纬线圈较长
D.0°经圈约为0°纬圈的一半