【单选题】T he lecture given by Professor Johnson on the Antarctic is very attractive, and at the beginning, it is _____ asking us questions about the mysterious continent. [ ]
【单选题】Byrd did not agree with Ronald Amundsen in that ______.
A.
the Antarctic is not a suitable place for human beings to survive
B.
people cannot explore the Pole area from air
C.
the airplanes would one day replace dogs and sledges
D.
dogs and sledges need no human care
【简答题】计算机病毒的特点有寄生性、破坏性、传染性、 、隐蔽性
【单选题】According to David Vaughan, the Antarctic is shrinking due to climate change.
【简答题】脑位于 _____内,包括______、_______、_______、中脑______和_______。