双侧近端指间关节增生、肿胀呈梭形改变,对称分布的疾病是()。
A.风湿热
B.类风湿关节炎
C.尺神经损伤
D.进行性肌萎缩
E.腱鞘滑膜炎
参考答案:B
The () in e-mail messages has affected almost every computer around the world and has caused the damage of up to US$1 billion in North America.
A.illness
B.virus
C.weakness
D.attachment
下列各项中,属于母病及子的是
A.肺病及肾
B.肝病及肾
C.肺病及心
D.心病及肝
E.脾病及肾