避暑山庄是清皇朝第二个政治活动中心，清政府许多重大政治事件都发生在这里，因此，避暑山庄又称为什么？
参考答案：
又称作热河行宫或承德离宫
The shrill and excitement brought about by riding roller coasters were ______ imagination. [ ]
A. above
B. over
C. beyond
D. across
the worldwide economic crisis（经济危机）in the USA grows，the possibility of lack of fund is also growing．
A．When
B．As
C．The moment
D．While
