【简答题】甲、乙两地分别位于我国两大不同地形区中,请根据下表所提供的甲、乙两地的相关资料,回答小题 地区 经纬度 海拔(米) 一月平均气温( o C) 七月平均气温( o C) 甲 102 o E,25 o N 1891 7.7 19.8 乙 113 o E,28 o N 68 4 32 小题1:甲、乙两地所在的地形区分别是 A.云贵高原、成都平原 B.黄土高原、华北平原 C.青藏高原、四川盆地 D.云贵高...
【单选题】New fighter jets are being designed so that the wing is modifiable, depending on the speed at which the plane is going. Which of the following would be a logical adjustment of the wing for such jets?
A.
At speeds above 500 mph, the top of the wing would become flatter.
B.
At speeds above 500 mph, the top of the wing would become more curved.
C.
At speeds above 500 mph, the bottom of the wing would become curved.