男，38岁，上臂肿块1年，结合图像，最可能的诊断是（）.
A.未见异常
B.肌内脂肪瘤
C.血管瘤
D.肌内感染
E.肌内囊肿
参考答案：B
Windows 98操作系统中，不支持的音频文件格式是( )。
A．WAV
B．MP3
C．MID
D．GIF
The two examples of wearing hats are given in the last paragraph to show _________.
A．the effect of customs on dressing style
B．the function of wearing straw hat
C．the correct way of wearing straw hat
D．the long history of some customs
