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【判断题】
碳素钢按用途分类可分为碳素结构钢和碳素工具钢。A.
正确
B.
错误
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皮皮学刷刷变学霸
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【简答题】下列代码运行结果是: a = 'python' b = 'python' id(a) == id(b)
【单选题】Without the air to hold some of the sun's heat, the earth at night ______ , too cold for us to live.
A.
would be coldly freezing
B.
would be freezingly cold
C.
would be frozen cold
D.
will freeze coldly
【多选题】Let S, T, and U be subspaces of a vector space V. Then which of the following equations hold.
A.
S∩(T+U)=(S∩T)+(S∩U)
B.
S+(T+U)=(S+T)+U
C.
S ∩ (T ∩ U)=(S ∩ T) ∩ U
D.
S+(T ∩ U)=(S+T) ∩ (S+U)
E.
dim S + dim T = dim (S ∩T)+dim (S+T)
【单选题】Humans still hold on to the absurd ______ that we are the only intelligent beings in the Universe.
A.
comprehension
B.
deception
C.
notion
D.
conception
【单选题】以下选项中,不是Python打开方式是
A.
Office
B.
Windows系统的命令行工具
C.
带图形界面的Python Shell-IDLE
D.
命令行版本的Python Shell-Python 3.x
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