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【单选题】
埋弧焊中( )焊剂不能依靠焊剂向焊缝大量过渡合金元素。A.
烧结
B.
粘结
C.
熔炼
D.
非熔炼
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反馈参考答案：
举一反三
【单选题】His uncle _______ in that bank ________ a clerk. [ ]
A.
work, as
B.
works, for
C.
work for
D.
works, as
【单选题】In his works, Defoe praised the industrious, sturdy ______ and showed his sympathy for the downtrodden, unfortunate poor.
A.
working people
B.
aristocrats
C.
middle-class people
D.
capitalist upstarts
【单选题】Michael works _______ a farm. His sister works ____ a factory.
A.
in, in
B.
on, on
C.
in, on
D.
on, in
【单选题】在Cinema 4D中,可以将Adobe Illustrator中创建的曲线转化为模型(如下图),需要选中曲线对象,按着Alt键创建“平滑细分→( )”,在其对象参数栏中勾选层级选项。
A.
挤压NURBS
B.
旋转NURBS
C.
扫描NURBS
D.
放样NURBS
【单选题】Theodore Dreiser set forth his ______ concept of the American society in his early works.
A.
romantic
B.
historical
C.
naturalistic
D.
realistic
【单选题】利什曼原虫的主要致病机理是:( )
A.
病原体在巨噬细胞内大量繁殖,引起巨噬细胞的破坏与增生
B.
变态反应
C.
抗原抗体复合物的形成
D.
细胞毒反应
E.
补体的作用
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