问题
写作题
书面表达。
用所给提示词和句子，结合图片信息编写一段对话，不得少于六句话。
提示词：Miss Zhang, Li Lei, Jim, morning, How are you?
Fine. Thanks. This is …, Nice to meet you.
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答案
Li Lei: Good morning, Miss Zhang.
Miss Zhang: Good morning, Li Lei.
Li Lei: Miss Zhang, how are you?
Miss Zhang: I’m fine, thank you. And you?
Li Lei:I’m fine, too. Miss Zhang, this is Jim. Jim, this is Miss Zhang.
Jim: Nice to meet you.
Miss Zhang: Nice to meet you, too.
答案不唯一
140×90×8，A=36cm2，Ix=732cm4，ix=4.5cm，iy=3.63cm；计算截面处有两栓孔，孔径21.5mm。钢材0235，f=215N/mm2，[λ]=150。