男，13岁，突发高热伴左小腿剧痛5d。体格检查：体温39℃，左小腿近干骺端处深压痛，略肿胀，关节间隙无明显压痛。X线检查未见明显异常。

就此该患者最可能的诊断是（）

A.急性血源性骨髓炎

B.急性化脓性关节炎

C.慢性骨髓炎

D.风湿性骨关节炎

E.以上都不对

根据句意和所给汉语提示，写出句中所缺单词或短语的正确形式。

1. I used my__________（计算器）,or it will have taken a long time.

2. The__________（微波炉）makes cooking meals easier and quicker.

3. The__________（电灯泡）is the most useful invention.

4. I bought my mother a pair of__________（拖鞋）for her birthday.

5. Don't throw about__________（电池）. They are bad for the environment.