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【单选题】
下列关于球墨铸铁管和普通铸铁管的特点，说法错误的是（）A.
球墨铸铁管管壁较薄，重量较轻
B.
普通铸铁管质脆，重量大
C.
普通铸铁管价格较低，制造较易，耐腐蚀性差
D.
球墨铸铁管属于柔性管，强度大，韧性大，抗腐蚀能力强
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举一反三
【单选题】He will ______ resign in view of the complete failure of the research project.
A.
doubtfully
B.
adequately
C.
presumably
D.
reasonably
【简答题】He will ________ resign in view of the complete failure of the research project. A) doubtfully B) adequately C) presumably D) reasonably
【简答题】A.He would be promoted if he didnt leave． B.He must resign reluctantly． C.He shouldnt leave under some pressure． D.He has potentials to do better．
【单选题】He would rather______part in such dishonest business deals.
A.
resign than take
B.
resign than to take
C.
resign than taking
D.
resigning than take
【单选题】It he had not been hurt______ much, he d never resign from office.
A.
fairly
B.
just
C.
rather
D.
that
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