题目

One of the hardest parts of planning a trip to Hawaii is deciding which of the major Hawaiian Islands you should visit. Each has its own personality and offers unique adventures and activities.OahuOahu has a bit of everything, packed in 597 square miles. You can hike into thick rainforests, and when you need a break, relax on powdery white sand beaches and stay at luxury resorts.Oahu has become a great destination for families. The urban core （核 心）of Honolulu and Waikiki has historic sites, museums and bustling （熙熙攘攘的）and nightlife scenes. The island lives up to its nickn在肺炎双球菌的转化实验中，下列哪种因子是转化因子( )A.蛋白质B.多糖C.DNAD.其他无机物