1898年，湖南巡抚陈宝箴在长沙成立“湖南保卫局”，这是中国历史上最早的专职警察机构。 ( )
参考答案：对
—How was your trip to New York, Jennifer?
—Fantastic! That was the first time I _______ to such a big city. It's so impressive.[ ]
A. have taken
B. had taken
C. have been taken
D. had been taken
患者，缺失，无第三磨牙，上下颌均为游离端缺牙，下颌缺牙区的牙槽嵴吸收严重呈窄条状，拟行可摘局部义齿修复。
如果采用铸造支架式可摘局部义齿，下颌缺隙的颊舌侧应该采用（）。
A.金属基托
B.塑料基托
C.塑料基托加铸造小连接体加固
D.组织面采用金属基托，表面采用塑料加厚
E.都可以采用
，
缺失，无第三磨牙，上下颌均为游离端缺牙，下颌缺牙区的牙槽嵴吸收严重呈窄条状，拟行可摘局部义齿修复。