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等於                                                     ...

問題詳情:

等於                                                     ...等於                                                                                                   

A.-等於                                                     ... 第2張              B.-等於                                                     ... 第3張                    C.等於                                                     ... 第4張                  D.等於                                                     ... 第5張

【回答】

C

知識點:三角恆等變換

題型:選擇題

TAG標籤:等於 #