关节活动范围增大的原因（）
A.滑膜或软骨损伤
B.积血或积液
C.关节炎或畸形
D.关节周围软组织损伤或粘连
E.肌肉迟缓性麻痹
参考答案：E
The reason was _____ I was busy with my work at that time.
A．why
B．because of
C．that
D．what
3〞X5〞的图像以150线素印成6〞X10〞大小，哪个是合适的扫描分辨率？（）
A.150像素
B.300像素
C.600像素
D.1200像素
