Which of the following statements is not true according to the text?
A. Robert Browning once put forward the phrase “less is more” in his poem in 1855.
B. The meaning and origins of the phrase “less is more”are rooted in history.
Consumption is facing a trend of decline in the future.
D. Young people are valuing experiences than material objects.
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柔性约束的约束力方向总是()受约束物体。
A. 铅垂指向
B. 沿绳索指向
C. 沿绳索背离
D. 水平指向
光滑面约束的约束力总对受力物体形成()作用。
A. 压力
B. 拉力
C. 牵引力
D. 摩擦力
K2M0表示( )。
A. K1-K3
B. M0-M3
C. K1和M0
D. M0-M7