2. Lucy is on a diet. She can’t have any s ks such as potato chips between meals.

問題詳情

2. Lucy is on a diet. She can’t have any s ks such as potato chips between meals.

參考答案

上一篇 : 【22.~24.】It’s Okay to Be SmallJenny was very small for her age. All her classmates were taller. She
下一篇 : 五、二座發電廠，有相同燃料成本，燃料成本 β=6 $/MWh ， γ=5✖10-3$/MW2h，輸電線損失，B11=0.5×10-3 MW-1，B22=0.2×10-3 MW-1，負載需求 600 M