中国历代宫殿在形制演变上基本上呈现出规模逐渐缩小,而建筑密度逐步增大的趋势。
参考答案:对
(几何证明选讲选做题)从不在⊙O上的一点A作直线交⊙O于B、C两点,且AB•AC=60,OA=8,则⊙O的半径等于______.
It was suggested that all government ministers should ______ information on their financial interests.
A.discover
B.uncover
C.tell
D.disclose