Suppose that the demand curve for soybeans shifts such that the equilibrium price of soybeans decreases 58 percent. At the new equilibrium price, the quantity that soybean suppliers are willing to provide decreases by 3 percent. Which of the following most accurately describes the elasticity of supply for soybeans Elasticity of supplyRelative elasticity（）

A. -0.05 Elastic

B. +0.05 Inelastic

C. +19.33 Inelastic

光缆接头，必须有一定长度的光纤，一般完成光纤连接后的余留长度（光缆开剥处到接头间的长度）一般为（）厘米。

A、50～100

B、60～100

C、80～120