问题
单项选择题
全口义齿初戴一周左右需要再调鸦是因为（）
A.全口义齿固位加强
B.病人已经可以用新义齿咀嚼食物
C.义齿咬合平衡已经建立
D.基托下沉
E.义齿基托长短已可确定
答案
参考答案：D
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全口义齿初戴一周左右需要再调鸦是因为（）
A.全口义齿固位加强
B.病人已经可以用新义齿咀嚼食物
C.义齿咬合平衡已经建立
D.基托下沉
E.义齿基托长短已可确定
参考答案：D
| 先阅读短文，掌握其大意，然后从方框中所给的词中选出最恰当的10个，并用其适当形式填空， 每个次限用一次。 | |
Some oranges do not have any seeds. Some have a 2______ skin, and some have a thin skin. The orange tree is beautiful. It has a lot of shiny green 3______. The small white flowers smell very sweet. An orange tree 4______ flowers and fruit at the same time. There were orange trees twenty million years ago. The oranges were very small, not like the 5______ today. The orange tree probably came from China. Many different kinds of wild oranges 6______ in China today. The Chinese started to raise (栽培) orange trees about 4,400 years ago. Farmers in other parts of Asia and the Middle East 7______ to raise oranges from the Chinese. 8______ they taught Europeans. The Spanish planted orange trees in the New World (North and South America). They took them to Florida 9______. Oranges are a very important crop in Florida Today. In English, orange 10______ both a fruit and a color. We use the name of the fruit for the color. |