问题
单项选择题 A1/A2型题
上颌腭中缝扩展的适应证不包括（）
A.15岁以前的替牙期和恒牙期患者
B.牙弓狭窄
C.后牙反
D.下颌平面角正常或偏高
E.牙列拥挤合并骨性矢状不调
答案
参考答案：D
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上颌腭中缝扩展的适应证不包括（）
A.15岁以前的替牙期和恒牙期患者
B.牙弓狭窄
C.后牙反
D.下颌平面角正常或偏高
E.牙列拥挤合并骨性矢状不调
参考答案：D
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| When I first entered university, my aunt, who is an English professor, gave me s new English dictionary. I was 1 to see that it was an English dictionary, also known as a monolingual dictionary. 2 it was a dictionary intended for non-native learners, none of my classmates had one 3 , to be honest, I found it extremely 4 to use at first. I would look up words in the dictionary and 5 not fully understand the meaning, I was used to the 6 bilingual dictionaries, in which the words are 7 both in English and Chinese, I really wondered why my aunt 8 to make things so difficult for me. Now, after studying English at university for three years, I 9 that monolingual dictionaries are 10 in learning a foreign language. As I found out, there is 11 often NO perfect equivalence (对应) between two 12 in two language. My aunt even goes so far as to 13 that a Chinese "equivalent" can never give you the 14 meaning of a word in English! 15 , she insisted that I read the definition (定义) of a world in a monolingual dictionary 16 I wanted to get a better understanding of its meaning. 17 , I have come to see what she meant. Using a monolingual dictionary for learners has helped me in another important way. This dictionary uses a(n) 18 number of words, around 2, 000, in its definitions. When I read these definitions, I am 19 exposed to (接触) the basic words and learn how they are used to explain objects and ideas. 20 this, I can express myself more easily in English. | ||||
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