下列哪种心律失常的心律是规则的：
A、室性早搏
B、心房颤动
C、阵发性室性心动过速
D、三度房室传导阻滞
E、二度I型房室传导阻滞
参考答案：D
There were many more people who got injured in the big fire than ____.
A．was reported
B．it was reported
C．were reported
D．they were reported
某非均质土坝中局部坝体采用无黏性土填筑，土料比重为Gs=2.68，最大孔隙比emax=0.98；最小孔隙比emin=0.72，场地位于8度烈度区，地震动峰值加速度为0.20g，为不使坝体发生液化，土料的压实系数应不低于（）。
A．0.92
B．0.94
C．0.96
D．0.98
