嵌体与银汞合金充填洞形预备原则不相同的是（）
A.做预防性扩展
B.底平、壁直
C.点、线、角清楚
D.洞形无倒凹
E.利用辅助固位形
参考答案：D
Most of the officials had expected the government’s move to reduce poverty would be_____success, but it ended up in ____ failure as a result of the financial crisis.
A ∕, ∕ B a, the C a , ∕ D ∕, a
Graves（GD）病
