世界陆地表面最低处是（ ）
A．里海湖面
B．珠穆朗玛峰
C．死海湖面
D．太平洋面
世界陆地表面最低处位于死海湖面，约为-400米．
故选：C．
All the policemen have been trained to ________ themselves against the sudden attacks. [ ]
A. fight
B. defend
C. dress
D. balance
