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试卷简介
本套试卷集合了考试编委会的理论成果。专家们为考生提供了题目的答案，并逐题进行了讲解和分析。每道题在给出答案的同时，也给出了详尽透彻的解析，帮助考生进行知识点的巩固和记忆，让考生知其然，也知其所以然，从而能够把知识灵活自如地运用到实际中去。
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1.The machine operators are so______to the noise that they don’t even notice it.
A.associated
B.sensitive
C.accustomed
D.familiar
2.He doesn’t work but he gets a good______from his investments.
A.wage
B.income
C.earning
D.salary
3.The result must be accurate,because all the calculations have been done by an______computer.
A.electric
B.electrical
C.electron
D.electronic
4.Mary is a conscientious student; she works very hard and is______to her teachers.
A.respected
B.respectable
C.respectful
D.respecting
5.The new______machine is a great help in the production of this factory.
A.adequate
B.sufficient
C.efficient
D.effective
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