如图是一个正方体纸盒的平面展开图，每一个正方形内部都有一个单项式，当折成正方体后，“？”所表示的单项式与对面正方形上的单项式是同类项，则“？”所表示的单项式是[]A.bB.-九年级数学

如图是一个正方体纸盒的平面展开图，每一个正方形内部都有一个单项式，当折成正方体后，“？”所表示的单项式与对面正方形上的单项式是同类项，则“？”所表示的单项式是

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A.b B.c C.d D.e

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        题型：单选题难度：中档来源：湖南省中考真题