如DMC1+3故障,还能正常工作的显示器是()
A.机长PFD.ND上ECAM;
B.副驾驶PFD.ND上ECAM;
C.副驾驶PFD.ND下ECAM。
参考答案:C
下列物质属于纯净物的是( )
A.稀盐酸
B.合金
C.洁净的空气
D.冰水混合物
Everyone is ________ to see such a ________ snake. [ ]
A. surprised, surprised
B. surprising, surprising
C. surprised, surprising
D. surprising, surprised