如图是某个几何体的三视图,该几何体是( )
A:正方体
B:圆柱
C:圆锥
D:球
观察如图,若要使图象移至视野中央,移动玻片的方向是( )
从下图所示的历史现象中,我们搞经济建设应吸取的经验教训是( )
The weather here is different from ________ in Beijing, but the people here are as friendly as _________ in Beijing.