FMGC的功能是：
A、飞行制导和飞行包线保护
B、飞行管理和飞行包线保护
C、飞行管理和飞行制导
D、飞行包线保护和偏航坐标轴控制
参考答案：C
She recognized him because of the hat. He was standing with his back to her on a cliff ________ out across a dark sea.
A．to look
B．looking
C．look
D．looked
专性厌氧生长的细菌是（）
A.破伤风梭菌
B.空肠弯曲菌
C.幽门螺杆菌
D.脆弱类杆菌
E.葡萄球菌
