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【判断题】
偶然误差是定量分析中的主要误差来源,它影响分析结果的准确度。A.
正确
B.
错误
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举一反三
【单选题】____how to solve the problem. [ ]
A.
Only he knew
B.
Only did he know
C.
He only did know
D.
Only did know he
【单选题】___ himself wrong, but his friends were wrong. [ ]
A.
Not was only he
B.
Not only he
C.
Not only was he
D.
Not only was
【简答题】A．Only those used in the university. B．Only those printed at the university. C．Only those currently available from publishers. D．Only those in the field of political science.
【判断题】In Wales, there are cultural and political differences between Welsh-speaking Wales in the north-west and center and English-influenced Wales in the east and south-west.
A.
正确
B.
错误
【简答题】用AUTOCAD 绘图时,延伸命令的快捷键是什么?
【简答题】____________________ [A] even if [B] if only [C] only if [D] as if
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