使用强心苷引起心脏中毒，最早症状是：
A．三联律
B．室性期前收缩
C．室上性阵发性心动过速
D．心房扑动
E．房性期前收缩
参考答案：B
I would stay at home and read a good book go to a party.[ ]
A. too, to
B. rather, than
C. more, than
D. so, that
