与腹腔脏器相应的穴位多集中在（）。
A.耳屏
B.耳舟
C.对耳轮
D.耳甲艇
E.耳垂
参考答案：D
Although ____, the Acropolis is still handling serious problems such as deliberate damage and stealing of
stones. [ ]
A. conserving
B. to be conserved
C. having conserved
D. being conserved
担保抵押债券是资产证券化的一种发展形式。（）
