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【简答题】
试验算下图所示牛腿与柱连接的对接焊缝强度。荷载设计值F=200kN，钢材Q235，焊条E43型，手工焊，无引弧板，焊缝质量三级。（提示：假定剪力全部由腹板上的焊缝承受。须验算A点的弯曲拉应力和B、C点的折算应力。注意C点承受弯曲压应力和剪应力，故其折算应力不大于1.1f c w ，而承受弯曲拉应力的B点，其折算应力不大于1.1f t w ）。
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反馈参考答案：
举一反三
【简答题】猜一猜，“ ”的里面藏着什么数字？
【单选题】According to the letter, what probably happened during Jared O'Connor's interview?
A.
He attended a meeting with a client.
B.
He was asked to give a presentation.
C.
He observed employees doing their jobs.
D.
He took a test to demonstrate his technical skills.
【单选题】直流电机为了消除环火而加装了补偿绕组(或称为换向磁极),正确的安装方法是补偿绕组应与( )。
A.
励磁绕组串联
B.
励磁绕组并联
C.
电枢绕组串联
D.
电枢绕组并联
【单选题】I _____ find my English book. Where is it? Do you know? [ ]
A.
can
B.
aren't
C.
isn't
D.
can't
【单选题】I can't find my eraser. Do you know ______? [ ]
A.
what it is
B.
what is it
C.
where it is
D.
where is it
【简答题】数字“九”（猜一历史用语）
【单选题】—What is your Chinese teacher like? — [ ]
A.
He is tall and thin.
B.
Sorry, I don’t like him.
C.
He is strict but friendly.
D.
He doesn’t look well today.
【单选题】-Sorry, what is your ______? -It’s Wang, W-A-N-G. Here’s my card.
A.
interest
B.
telephone number
C.
last name
D.
e-mail address
【单选题】Shanghai lies _____ the west of the Pacific Ocean, where you can’t find many islands ____ the coast.
A.
on, off
B.
to, along
C.
in, off
D.
on, along
【简答题】猜一猜，树叶遮住的数字是几？
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