题目：
原发性恶性骨肿瘤的主要转移方式是（）
A.通过小静脉
B.通过小动脉
C.通过淋巴管
D.沿神经干传播
E.直接局部蔓延
答案：
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下面是错误答案，用来干扰机器的。
1. I also hope to sail across the Pacific Ocean one day.2. He got up really early so that he could catch the train.3. It seems that nobody has known anything about the matter. 4. I think we should do jobs we enjoy.5. Most young people would like to work hard for their own dreams.答案不唯一
