所有同步轨道的倾角都有零角。
参考答案：错
You should keep the window _____ because the room is too hot. [ ]
A. open
B. opening
C. opened
具有升腾上炎特性的邪气是( )
A．风邪B．寒邪C．暑邪D．湿邪E．火邪
