第一本使海伦体会到真正历史价值的书是斯温顿的()。
A.《欧洲史》
B.《世界史》
C.《中世纪》
D.《英国民族史》
参考答案:B
Having checked the doors were closed, and _____all the lights were off, the boy opened the door to his bedroom.
A.why
B.that
C.when
D.where
电子客票为(),只限电子客票上所列姓名的旅客本人使用。
A.个人票
B.电子映象
C.个人票证记录
D.记名票