A:第10s通过2m的位移
B:头10s通过20m位移
C:头10s通过10m的位移
D:每秒速度增加0.2m/
读图“漠河、北京、上海、广州四城市气温和降水分配图”,回答下列问题。
《天工开物》被外国学者誉为“17世纪的工艺百科全书”,它反映了明代( )
①医学的发展状况 ②农业生产技术的发展状况 ③手工业简单生产技术的发展状况 ④航海业的发展盛况
A. Red is my favourite colour.
B. What time does the party begin?
C. That sounds interesting.
D. It's on 5th January.
E. Can you come to my birthday party, Linda?
Peter: ____
Linda: Sure. When's your birthday?
Linda: ____
Peter: It begins at half past six in the evening.
Linda: OK.
Peter: Please bring some red things to the party. It's a "red party". ____Linda: A “red party”? ____ I can't wait.
下列关于合力的叙述中正确的是( )