A:政治关系合作
B:军事关系竞争
C:外交关系和平
D:军事关系合作
下列各句翻译正确的一项是( )
一辆质量为2t的汽车以恒定牵引力爬一倾角为300的斜坡,坡长是100m,汽车上坡前速度是10m/s,到达坡顶的速度是5m/s,汽车受到的摩擦阻力为车重的0.05,求汽车的牵引力.(取g=10m/s2)
根据句意及首字母提示完成单词
(1) My favourite drink is orange j____ .
(2)Fruit and v____ are good for our health.
(3)He is thirsty (口渴的). He drinks lots of w____.
(4) What k____ of fruit have you got?
(5)I like eating fish. It's very d____.