题目内容

下列关于Q460DZ15的说法正确的是【】。

A. 是低合金钢
B. 断面收缩率不低于15%
C. 要求-20℃时的冲击韧性指标符合要求
D. 按脱氧方式分类是镇静钢

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下列关于HW100×100×6×8的描述正确的是【】

A. 该截面是中翼缘H型钢
B. 截面高度100mm
C. 翼缘厚度8mm
D. 腹板厚度8mm

下列关于HM150×100×6×8的描述正确的是【】

A. 该截面是中翼缘H型钢
B. 截面高度100mm
C. 翼缘厚度8mm
D. 截面宽度100mm

Leading an online meeting can be challenging, but a few basic technical and ________ skills will help you engage with colleagues and ensure your online meetings are productive.

If you join late, join quietly and do not ________ the conversation or the presentation because when the facilitator notices you've joined, he will welcome you at an appropriate point.