2022 英语周报 高二 XN 32答案

20.解:(1)x=0.002×50×205+0.004×50×255+0.009×50×305+0.004×50×355+0.001×50×405=300(千米)(2)因为X一N(30050),所以P(250

For an instant they reminded me of newlyweds, but I knew by the age of their kids that they couldn tpossibly be. I puzzled about it for a moment then realized how totally focused I was on the wonderful display ofuncondition! love not more than an arm's length away from me. I suddenly felt uncomfortable, as if I wasinvading something sacred, but was amazed to hear my own voice nervously ask,"Wow! How long have youtwo been married?Married twelve years. "he replied, without breaking his gaze from his lovely wife's face. "Well, howlong have you been away?" I asked. The man finally turned and looked at me, still beaming his joyous smile.Two whole days !"I was stunned. "I hope my marriage is still that passionate after twelve years!" The mansuddenly stopped smiling. He looked me straight in the eye and told me something that left me a differenperson."Don't hope, friend.. decide!

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