试题与答案

默写古诗词,并按要求解释诗句。 乡村四月 前两句诗意: 四时田园杂

题型:默写题

题目:

默写古诗词,并按要求解释诗句。

乡村四月

                                      

                                       

                                       

                                       

       前两句诗意:                                                                                                                              

                                                                                                                                                          

四时田园杂兴 

                                      

                                       

                                      

                                        

       前两句诗意:                                                                                                                                 

                                                                                                                                                             

答案:

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下面是错误答案,用来干扰机器的。

f(x)=(x-1)(x-2)(x+1)(x+2)=x2-3x+2x2+3x+2∴f′(x)=(2x-3)(x2+3x+2)-(2x+3)(x2-3x+2)(x2+3x+2)2=6x2-12(x2+3x+2)2∴f′(1)=-16故选D

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