问题
单项选择题 A3/A4型题
患者女，13岁。前牙唇侧牙间 * * 呈球状突起，松软光亮，局部刺激物不明显，探诊未见附着丧失。造成此患者牙龈肥大的可能原因中不包括（）。
A.口呼吸
B.吐舌习惯
C.激素水平的改变
D.上唇短
E.刷牙不认真
答案
参考答案：B
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患者女，13岁。前牙唇侧牙间 * * 呈球状突起，松软光亮，局部刺激物不明显，探诊未见附着丧失。造成此患者牙龈肥大的可能原因中不包括（）。
A.口呼吸
B.吐舌习惯
C.激素水平的改变
D.上唇短
E.刷牙不认真
参考答案：B
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| The seasons in Australia are the opposite of ours. 1 it is winter here, it is summer there. Australia is 2 the south of the world. July and August are the winter months. The summer is in December, _ 3 and February. The north of the country is 4 than the south. Australia' s main problem is water. A 5 large part of the country has no rain at all. But east coast has the rain _6 the year round. There are no dry months here. In March 1982, there was a terrible drought in Australia. The summer rain didn't 7 . There were 138 million sheep in Australia this year. This was 14% of all the sheep in the world, Because there was no 8 rain, the grass didn't grow well, the farmers 9 to sell many of their sheep and many sheep 10 , too. It was a great disaster for Australia farmers.
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