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【单选题】
良、恶性肿瘤最根本的区别在于A.
肿瘤的生长速度
B.
肿瘤切除后是否复发
C.
肿瘤的组织来源
D.
肿瘤细胞的异质性
E.
肿瘤是否呈浸润性生长
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【简答题】根据句意及首字母提示完成句子. 1. C_____ advertising should be banned because smoking is bad for our health. 2. 'I'm really so sad to hear his death' ,the man said with t____ in his eyes. 3. The a____ flies at l ,00...
【简答题】七选五 Do you constantly use the computer, whether for learning or entertainment? Computers give off radiation that is bad for your health, but here are some ways to protect yourself from computer radiat...
【简答题】A．It is also useful to get rid of a bad mood. B．It is too hard to do good to people's health. C．It may boost the heart rate. D．It is hardly effective in altering mood.
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