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【单选题】
不符合最终研磨效果的是哪项?
A.
为了保证工作效率,可以有轻微的锯齿
B.
必须保证平滑、无台阶
C.
旧漆面的宽度至少3cm
D.
研磨后不能有明显的砂纸痕
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举一反三
【多选题】埋弧焊存在的主要缺点有( )。
A.
难以在空间位置施焊
B.
难以焊接易氧化的金属材料
C.
对焊件装配质量要求高
D.
不适合焊接薄板和短焊缝
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【多选题】埋弧焊机的特性包括（）等。
A.
生产效率高，焊接质量好，劳动条件好
B.
埋弧自动焊是依靠颗粒状焊剂堆积形成保护条件，主要适用于平位置焊接
C.
埋弧焊剂的成分主要是MnO、SiO2等金属及非金属氧化物
D.
不适用于长缝的焊接
E.
只适合焊接薄
查看完整题目与答案
【单选题】以下选项中，（ ）是埋弧焊的优点。
A.
适合全位置焊
B.
焊接短缝
C.
焊接不规则焊缝
D.
中厚板材、长直焊缝
查看完整题目与答案
【单选题】There are many dictionaries here, but which one ______you? [     ]
A.
is belonging to
B.
is belonged to
C.
belongs to
D.
belongs
查看完整题目与答案
【单选题】On the day he got back the umbrellas, the woman on the bus ______.
A.
wanted to get one of them
B.
thought one of them was hers
C.
thought he had stolen (偷) them
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【单选题】Over the week ,turnover rose by T $ 5. 83bn.
A.
Bangkok rose 2 per cent on the day and 3.4 per cent over the week as buyers moved in to large market capitalization stocks. The SET index rose 27.55 to 1,383.57 in turnover of Bt 8.5 bn, down from Thursday's Bt 10bn.
B.
Taipei was pulled lower by late profit-taking in industrials after Thursday's rebound ,and the weighted index fell 45.59 to 5,806.77, or 1.7 per cent, over the week. Turnover rose to T $41.51 bn from T $ 35. 78bn.
C.
Manila opened strongly on foreign buying of blue chips but dipped at the close as profits were taken. The composite index fell 10.07 to 2 ,907. 00 , 1.3 per cent higher on the week
D.
Hong Kong finished a mixed day slightly lower ,sapped by profit-taking on confirmation of US renewal of China's MFN trade status and concerns over the lower domestic property market. The Hang Seng index fell 11.58 to close at 9,470.13, 1.7 per cent lower on the week.
查看完整题目与答案
【单选题】Which of the following best expresses the writers view on choice? ______
A.
Better more choice than no choice.
B.
Better no choice than more choice.
C.
All choice is easy.
D.
More choice, more anxiety.
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【简答题】Between the choice of being downloaded into a computer which is stuck in a room but still being able to think and the choice of dying, Hillis will choose the ______ one.
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【简答题】Which of the following was NOT a constraint On one's choice of soulmate in the old days?
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【判断题】CO 2 气体保护焊与手弧焊相比,成本低,生产率高。与埋弧自动焊相比,可以进行各种空间位置焊缝的焊接。但是 CO 2 气体保护焊一般只适于焊接低碳钢和低合金钢。
A.
正确
B.
错误
查看完整题目与答案
相关题目：
【多选题】埋弧焊存在的主要缺点有( )。
A.
难以在空间位置施焊
B.
难以焊接易氧化的金属材料
C.
对焊件装配质量要求高
D.
不适合焊接薄板和短焊缝
查看完整题目与答案
【多选题】埋弧焊机的特性包括（）等。
A.
生产效率高，焊接质量好，劳动条件好
B.
埋弧自动焊是依靠颗粒状焊剂堆积形成保护条件，主要适用于平位置焊接
C.
埋弧焊剂的成分主要是MnO、SiO2等金属及非金属氧化物
D.
不适用于长缝的焊接
E.
只适合焊接薄
查看完整题目与答案
【单选题】以下选项中，（ ）是埋弧焊的优点。
A.
适合全位置焊
B.
焊接短缝
C.
焊接不规则焊缝
D.
中厚板材、长直焊缝
查看完整题目与答案
【单选题】There are many dictionaries here, but which one ______you? [     ]
A.
is belonging to
B.
is belonged to
C.
belongs to
D.
belongs
查看完整题目与答案
【单选题】On the day he got back the umbrellas, the woman on the bus ______.
A.
wanted to get one of them
B.
thought one of them was hers
C.
thought he had stolen (偷) them
查看完整题目与答案
【单选题】Over the week ,turnover rose by T $ 5. 83bn.
A.
Bangkok rose 2 per cent on the day and 3.4 per cent over the week as buyers moved in to large market capitalization stocks. The SET index rose 27.55 to 1,383.57 in turnover of Bt 8.5 bn, down from Thursday's Bt 10bn.
B.
Taipei was pulled lower by late profit-taking in industrials after Thursday's rebound ,and the weighted index fell 45.59 to 5,806.77, or 1.7 per cent, over the week. Turnover rose to T $41.51 bn from T $ 35. 78bn.
C.
Manila opened strongly on foreign buying of blue chips but dipped at the close as profits were taken. The composite index fell 10.07 to 2 ,907. 00 , 1.3 per cent higher on the week
D.
Hong Kong finished a mixed day slightly lower ,sapped by profit-taking on confirmation of US renewal of China's MFN trade status and concerns over the lower domestic property market. The Hang Seng index fell 11.58 to close at 9,470.13, 1.7 per cent lower on the week.
查看完整题目与答案
【单选题】Which of the following best expresses the writers view on choice? ______
A.
Better more choice than no choice.
B.
Better no choice than more choice.
C.
All choice is easy.
D.
More choice, more anxiety.
查看完整题目与答案
【简答题】Between the choice of being downloaded into a computer which is stuck in a room but still being able to think and the choice of dying, Hillis will choose the ______ one.
查看完整题目与答案
【简答题】Which of the following was NOT a constraint On one's choice of soulmate in the old days?
查看完整题目与答案
【判断题】CO 2 气体保护焊与手弧焊相比,成本低,生产率高。与埋弧自动焊相比,可以进行各种空间位置焊缝的焊接。但是 CO 2 气体保护焊一般只适于焊接低碳钢和低合金钢。
A.
正确
B.
错误
查看完整题目与答案