Score 二、判断题 (True/False)。在题中“ 总计 10 分) 1. The degrees of freedom of a rigid body are three. 2. The shape of bending mome

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Score 二、判断题 (True/False)。在题中“ 总计 10 分) 1. The degrees of freedom of a rigid body are three. 2. The shape of bending moment of the following beam is triangular P-2 kN P=2 KN 6m _”处填上答案。(本大题共5小题, 6 m D 6 m 3. The number of zero-force members of the following truss is eight. 4. The number of primary unknowns in the following system by using the force method is four and by using the displacement method is one. # for 5. The differential relationships between shears and bending moments in the beam dM satisfy the following equation: dx