问题
多项选择题
关于骨肉瘤的叙述，正确的是（）.
A.好发于老人
B.常发生病理性骨折
C.以膝关节上下端多见
D.以手术为主
E.最多见的原发性恶性骨肿瘤
答案
参考答案：B, C, D, E
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关于骨肉瘤的叙述，正确的是（）.
A.好发于老人
B.常发生病理性骨折
C.以膝关节上下端多见
D.以手术为主
E.最多见的原发性恶性骨肿瘤
参考答案：B, C, D, E
| 选择合适的答语。 | |
| ( ) 1. What did you do yesterday? ( ) 2. Did Mary learn Chinese? ( ) 3. What is she doing? ( ) 4. Who are they? ( ) 5. Is this your grandma? ( ) 6. How was it different? ( ) 7. Is she dancing now? ( ) 8. Why is he eating ice-cream? | A. They are my grandparents, B. She is talking to her friend. C. I went to the park. D. Yes,it is. E. No,she didn't. F. Because he feels hot. G. There weren't any buses. H. Yes,she is. |