题目

Escaping the stress of work and social worries and finding yourself in a winter wonderland is a magical feeling. Try to make any of these destinations your target and you'll be happy that you did!l. Harbin city, ChinaCome and enjoy one of the most memorable Ice and Snow Festival during winter. Harbin City's snow festival draws a huge crowd because tourists want to feast their eyes of the well-known splendid ice structures.These structures are the biggest ice structures you will find nowhere in the world and they get more beautiful at night when they are lighted up by diverse colored lights. Pl在力学中，下列物理量属于国际单位制规定的基本量的是（　　）A．长度、质量和时间B．速度、质量和时间C．位移、力和时间D．长度、质量和力