阵发性室上性心动过速见（）。
A.脉搏减慢
B.脉搏增快
C.交替脉
D.水冲脉
E.无脉
参考答案：B
Even if the treatment ________, there is still no magic pill for patients in the late stages of AIDs.
A．does
B．uses
C．works
D．helps
心脏右前斜位，摄影的角度是（）
A.45°～55°
B.56°～65°
C.66°～70°
D.71°～80°
E.81°～85°
