试题与答案

经常更新新文章吸引读者,培养粉丝,扩大潜在顾客群体的是哪一种推广方式?()A.博客

题型:单项选择题

题目:

经常更新新文章吸引读者,培养粉丝,扩大潜在顾客群体的是哪一种推广方式?()

A.博客

B.友情链接

C.淘客

答案:

参考答案:A

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题型:单项选择题

胶带机通廊悬挂在厂房框架上,通廊宽8m,两侧为走道,中间为卸料和布料设备,结构布置如图所示。通廊结构采用Q235B钢,手工焊接使用E43型电焊条,要求焊缝质量等级为二级。

已知简支轨道梁(B3)承受均布荷载和卸料设备的动荷载,其基本组合的最大弯矩设计值Mx=450kN·m,采用热轧H型钢H600×200×11×17制作,Ix=78200×104mm4,Wx=2610×103mm3。当进行抗弯强度计算时,试问,梁的弯曲应力(N/mm2),与下列何项数值最为接近()

提示:取Wnx=Wx

A.195

B.174

C.164

D.130

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题型:改错题

短文改错。

    Tom and Dick are next door neighbor who both work in same office. They often walk together to and

from work. Once they were walking to home together while it suddenly started to rain. Tom quickly opened

his umbrella and said proud, "My wife really has great foresight. She said this morning it would rain and tell

me to carry my umbrella. "Dick smiled and walked up to her under the protection of the umbrella, said, "Mine

has even great foresight. She didn't let me carry one as she knew you'd share yours to me."

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