急性血源性骨髓炎最常发生的部位是（）。
A."腕、跗骨"
B."长管骨骨干"
C."小儿长管骨干骺端"
D."扁骨"
E."椎骨"
参考答案：C
用所给词的适当形式填空
1. Can you bring these ____(book) to school?
2. _____ (be) her dictionary on the sofa?
3. That is _____ (I) photo.
4. Where are students' _____ (椅子)?
5. Where is the ______(桌子)?
