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问题 单项选择题

以下关于小儿急性肠套描述正确的是：（）

A.病因为先天性幽门肌间神经节数量增加

B.80%患儿大于2岁

C.营养不良多见

D.继发性占95%

E.排果酱样黏液血便

答案

参考答案：E

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假入你是凯特，非常喜欢音乐，大部分空闲时间都花在音乐上面。请你以 I like music 为题，写一篇70词左右的短文。要求至少写出你喜欢音乐的三个原因。

I like music very much . I spend most of my free time on music.                           

                                                                                   

                                                                                   

                                                                                   

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    

                                                                                    
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单项选择题

电流表上的计量单位是（）。

A.度

B.安

C.瓦
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