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【单选题】
产生焊缝尺寸不符合要求主要原因是焊件坡口开得不当或装配间隙不均匀及（）选择不当。
A.
焊接工艺参数
B.
焊接方法
C.
焊接电弧
D.
焊接线能量
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参考答案：
举一反三
【单选题】关于神经系统发育特征的描述巾哪一条是错误的( )。
A.
脑重量出生时约为350克
B.
婴儿期脑细胞不断繁殖，脑重增长最快，1岁未可达出生时1．5倍
C.
6-7岁时接近成人脑重
D.
小脑在出牛后6个月达到生长高峰
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【简答题】Last year French drivers killed【56】 than 5,000 people on the roads for the first time in decades. Credit goes largely【57】 the 1,000 automated radar cameras planted on the nation's highways since 2003,...
查看完整题目与答案
【单选题】According to the first paragraph, the index of DJIA
A.
rose above 9,000 for the first time in history.
B.
has increased 38% since October 2007.
C.
indicates the end of the harsh economic environment.
D.
is still 54% lower than the highest point in history.
查看完整题目与答案
【简答题】Last year French drivers killed【C1】______than 5, 000 people on the roads for the first time in decades. Credit goes largely【C2】______the 1, 000 automated radar cameras planted on the nations highways ...
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【单选题】It is generally agreed that the first true cities appeared about 5,000 years ago in the food-producing communities of the Middle East. The cities of Sumeria, Egypt and the Indus Valley possessed a num...
A.
larger populations
B.
different social classes
C.
different roles
D.
different locations
查看完整题目与答案
【单选题】古罗马的神庙继承了希腊的宗教和型制,以()为主,建在城中。 而下图的()主要采用了穹顶覆盖的集中式形制,是单一空间、集中式构图的建筑物的代表,是罗马穹顶技术的最高代表。
A.
矩形前廊式;罗马万神庙
B.
围廊式;圣索菲亚大教堂
C.
圆形;圣索菲亚大教堂
D.
圆形;罗马万神庙
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【单选题】'The second ＄100,000 never tastes as good as the first', because ______.
A.
it's not so fresh as the first ＄100,000
B.
it is not so important as the first ＄100,000
C.
profit brought by it is less than that from the first ＄100,000
D.
happiness brought by it is less than that from the first ＄100,000
查看完整题目与答案
【单选题】_________ climber gets to the top first will get a $5,000 prize.
A.
No matter when
B.
Whichever
C.
No matter which
D.
Whenever
查看完整题目与答案
【简答题】Short Story Contest : Win $8,000 First Prize $5,000 in Cash Writers Creative Writing Correspondence Program offers non-professional authors an opportunity to have a novel, book of short stories, v...
查看完整题目与答案
【简答题】Last year French drivers killed【1】than 5,000 people on the roads for the first time in decades. Credit goes largely【2】the 1,000 automated radar cameras planted on the nation's highways since 2003, whi...
查看完整题目与答案
相关题目：
【单选题】关于神经系统发育特征的描述巾哪一条是错误的( )。
A.
脑重量出生时约为350克
B.
婴儿期脑细胞不断繁殖，脑重增长最快，1岁未可达出生时1．5倍
C.
6-7岁时接近成人脑重
D.
小脑在出牛后6个月达到生长高峰
查看完整题目与答案
【简答题】Last year French drivers killed【56】 than 5,000 people on the roads for the first time in decades. Credit goes largely【57】 the 1,000 automated radar cameras planted on the nation's highways since 2003,...
查看完整题目与答案
【单选题】According to the first paragraph, the index of DJIA
A.
rose above 9,000 for the first time in history.
B.
has increased 38% since October 2007.
C.
indicates the end of the harsh economic environment.
D.
is still 54% lower than the highest point in history.
查看完整题目与答案
【简答题】Last year French drivers killed【C1】______than 5, 000 people on the roads for the first time in decades. Credit goes largely【C2】______the 1, 000 automated radar cameras planted on the nations highways ...
查看完整题目与答案
【单选题】It is generally agreed that the first true cities appeared about 5,000 years ago in the food-producing communities of the Middle East. The cities of Sumeria, Egypt and the Indus Valley possessed a num...
A.
larger populations
B.
different social classes
C.
different roles
D.
different locations
查看完整题目与答案
【单选题】古罗马的神庙继承了希腊的宗教和型制,以()为主,建在城中。 而下图的()主要采用了穹顶覆盖的集中式形制,是单一空间、集中式构图的建筑物的代表,是罗马穹顶技术的最高代表。
A.
矩形前廊式;罗马万神庙
B.
围廊式;圣索菲亚大教堂
C.
圆形;圣索菲亚大教堂
D.
圆形;罗马万神庙
查看完整题目与答案
【单选题】'The second ＄100,000 never tastes as good as the first', because ______.
A.
it's not so fresh as the first ＄100,000
B.
it is not so important as the first ＄100,000
C.
profit brought by it is less than that from the first ＄100,000
D.
happiness brought by it is less than that from the first ＄100,000
查看完整题目与答案
【单选题】_________ climber gets to the top first will get a $5,000 prize.
A.
No matter when
B.
Whichever
C.
No matter which
D.
Whenever
查看完整题目与答案
【简答题】Short Story Contest : Win $8,000 First Prize $5,000 in Cash Writers Creative Writing Correspondence Program offers non-professional authors an opportunity to have a novel, book of short stories, v...
查看完整题目与答案
【简答题】Last year French drivers killed【1】than 5,000 people on the roads for the first time in decades. Credit goes largely【2】the 1,000 automated radar cameras planted on the nation's highways since 2003, whi...
查看完整题目与答案
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