美国麻省理工大学：《结构分析与设计技术》教学资源（讲义）CQ14

Concept Question Which of the following statements is true 1. The PVD and the PMPE are equivalent 2. The PVD is more general 3. The PMPE applies to any kind of material 4. The stationary character of the potential en ergy is equivalent to the Pvd for elastic ma terials Statements(1) and 3) 12345 Statements()and(4) Statements(2)and(3) Statements() and(4) DKDU

++++ ++++ ++++ ++++ ++++ Concept Question ++++ ++++ ++++ ++++ ++++ Which of the following statements is true? 1. The PVD and the PMPE are equivalent 2. The PVD is more general 3. The PMPE applies to any kind of material 4. The stationary character of the potential en￾ergy is equivalent to the PVD for elastic ma￾terials 1. ++++ Statements (1) and (3) 2. ++++ Statements (1) and (4) 3. ++++ Statements (2) and (3) 4. ++++ Statements (2) and (4) 5. ++++ DKDU

The right answer is(4)

The right answer is (4) ++++