获得性免疫缺陷综合症也称为（）
A.肝炎
B.流感
C.艾滋病
D.脑瘫
参考答案：C
Mark often attempts to escape _______ whenever he breaks traffic regulations.
A．having been fined
B．being fined
C．to have been fined
D．to be fined
世界陆地最高点珠穆朗玛峰海拔约8844米，我国陆地最低点吐鲁番盆地海拔-155米两者相对高度是[ ]
A．8999米
B．9003米
C．8690米
D．8693米
