问题
单项选择题 A2型题
哪项不是21-三体综合征的特点（）
A.免疫功能低下
B.白血病的发生率较低
C.性发育延迟
D.智力低下
E.喂养困难
答案
参考答案：B
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哪项不是21-三体综合征的特点（）
A.免疫功能低下
B.白血病的发生率较低
C.性发育延迟
D.智力低下
E.喂养困难
参考答案：B
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| One day, a Chinese student 1 Sun Huaqiang went to study English in England. His 2 name was the same as the English word "sun". England is a country with 3 weather. It is often cloudy or misty, and it rains very often, so the people there don't get much 4 in the whole year. When the Chinese student 5 London, a tall English policeman 6 a long face opened his passport to check it. The policeman was 7 in the Chinese name "sun" in the passport. He thought it was pronounced just like the English word "sun". So he said to the Chinese student, "I see your name is sun. You are wanted here." The Chinese student was quite 8 . But 9 a moment the policeman began to smile, "Mr Sun, you've brought sunshine to England, so we don't want you 10 away. | ||||
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