---Who won the election for major?  

---A man _______ to represent every minority group in the city.[ ]

A. claims

B. is claimed

C. claimed

D. claiming

飞机的自动驾驶仪通常有（）两个通道.

A.速度通道和姿态通道

B.横滚通道和俯仰通道

C.数字通道和模拟通道

D.计算通道和控制通道