题干
Jack had traveled six miles across the Channel___________his engine failed and was forced to land on the sea .
A：whe
B：until
C：after
D：since
答案(点此获取答案解析）
A
A：whe
B：until
C：after
D：since
Some 
的图象按向量
平移后得到函数
的图象，若函数
满足
，则向量
的坐标是（ ）