推焦前,提前()分钟打开出炉号上升管盖。
A、10~15
B、15~20
C、20~30
参考答案:C
All around them was only the white snow and the night; they were ____________ from the rest of the world and were conscious only of each other.
A.cut out
B.cut down
C.cut off
D.cut in
通过列表格的形式识记《马关条约》的内容和造成的影响。