主控制手柄还包括一个机械联锁系统，防止单个部件牵引/制动控制器、主控钥匙开关和选择开关的错误操作。
参考答案：对
— Would you like to go camping with me when the summer holiday comes?
— I really dislike camping, but I will ______ you if you insist. [ ]
A. company
B. companion
C. accompany
D. compare
武陵源风景区包括（）几大区域。
A.天子
B.索溪峪
C.南麓
D.张家界
