按风场变化特征,热带风暴区风场分布可分为三个区域,它们是(),()和()。
参考答案:外圈;中圈;内圈
It is said that the old pot ____under the earth for about 1000 years by the time it was discovered.
A.had buried
B.had been buried
C.buried
D.were buried
按下哪个键,拖动鼠标,可以实现对象的复制()
A.Ctrl
B.Shift
C.Alt
D.Enter