骨肿瘤的骨质破坏包括()、()两类。
参考答案:成骨性;溶骨性
Don’t keep silence! The head teacher is ___________a lot about that.
A.able to know
B.supposed to know
C.supposing to know
D.going to know
恶性肿瘤的血行转移常见部位是哪些脏器?