急进性肾炎临床表现最突出者为（）
A.水肿
B.高血压
C.少尿或无尿
D.镜下血尿
E.心包摩擦音
参考答案：C
Though many extra planes and trains are used to carry passengers, traffic tools are still _____ needed
during "May Day" holidays. [ ]
A. eagerly
B. badly
C. equally
D. slightly
操作系统的功能是
A．将源程序编译成目标程序
B．负责诊断机器的故障
C．控制和管理计算机系统的各种硬件和软件资源的使用
D．负责外设与主机之间的信息交换
