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问题 判断题

潮湿气候区可形成锰、铝沉积，碳酸钙仅沉积于干旱气候区的湖泊中。

答案

参考答案：错

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为李波写一段自我介绍（不少于8句）。
Name: Li Bo                Age: 11                   School: City: Nanjing
Hobbies: playing football, swimming            Favourite subjects: Maths, PE, English
Family: Father, Mother                               E-mail: LB  11 @126. com

                                                                                                                                                               
                                                                                                                                                               
                                                                                                                                                               
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单项选择题

左心衰竭最严重的形式是（）

A.端坐呼吸

B.咯血

C.劳力性呼吸困难

D.夜间阵发性呼吸困难

E.急性肺水肿
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