A:公式中的m0是物体以速度v运动时的质量
B:当物体运动速度v>0时,物体的质量m>m0,即物体的质量改变了,故经典力学不适用
C:当物体以较小的速度运动时,质量变化十分微小,经典力学理论仍然适用,只有当物体以接近光速运动时,质量变化才明显,故经典力学仅适用于低速运动,而不适用于高速运动
D:通常由于物体的速度太小,质量的变化不能引起我们的感觉,在分析地球上物体的运动时,不必考虑质量变化
下列不属于生物生存“金锁链条件”的是( )
— What is this English?
— It's a quilt.
Jim, what happened to you?____ A. Walt Disney.
Which do you like better, tea or coffee?____ B. I went to the beach.
Where did you go on vacation?____ C. Coffee.
What's the best movie theater to go to?____ D. I lost my watch yesterday.
Who was the most successful man?____ E. Xinhua cinema, I think.
—Yes, and it's larger than _______city in China.