当帕米尔高原日出时间由最晚逐渐提早时，地球公转至（ ）
A．春分至夏至之间
B．夏至至秋分之间
C．秋分至冬至之间
D．冬至至春分之间
答案：D
The Qing Tombs are obviously influenced by the Ming Tombs, especially _________architecture and their choice of site among the mountains and valleys.
A．in terms of
B．in case of
C．as a result of
D．in the face of
绝缘材料的绝缘强度是指（）厚绝缘材料所能承受的电压千伏值。
