图1,虚线箭头表示水平运动物体的原始运动方向,实线箭头表示受地转偏向力影响后实际的运动方向,图中所示四种情况,正确的是( )
A:①②
B:②③
C:③④
D:①④
在下面的横线上填上适当的数.
____ ÷9=79
6÷ ____= 621
一Don't worry.Grandma.I'm show you how to use it.
今年3月中国男足在长沙举行的世界杯亚洲区预选赛中,于大宝头球攻陷韩国队大门, 1:0绝杀韩国队。球员争顶后顶出的球在上升过程中受到____(选填“平衡力”或“非平衡力”)作用,足球最后会落回地面是因为受____的作用。
根据材料完成下列各题。BeethovenBorn in 1770 in GermanyA musician (音乐家)Died in 1827Florence NightingaleBorn in Italy on May 12th, 1820An English nurseDied in 1910Bill GatesBorn in I955 in the USAWrote Business @ the Speed of ThoughtOwns MicrosoftThomas EdisonBorn in 1847 in the USAMade over 1,000 inventions (发明)Died in 1931Yao MingBorn on September 12th, 1980 in Shanghai, ChinaA basketball playerPlayed for the Houston Rockets, the USA