急性血源性骨髓炎除制动外，局部治疗的一个重要措施是（）
A.穿刺抽脓
B.穿刺抽脓注入抗生素
C.开窗引流术
D.外敷药物
E.理疗
参考答案：C
以How to live a low-carbon life 为题，联系生活实际写一篇短文，谈谈如何在日常生活中
过一种“低碳生活”，也是环保生活。80字左右。
关键词：Low-carbon life save energy green consumer
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已知
则
的值为（）．
则
的值为（）．