皮皮学，免费搜题
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搜题
【单选题】
化肥生产设备用高压无缝钢管的适用压力为:10MP至( )MPA.
20
B.
32
C.
40
D.
42
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【单选题】Some weeks ago, riding in a cab from Boston to Cambridge, my driver turned and asked me what I did for a living. 'Teach English,' I said. 'Is that so?' The young man continued. 'I was an English major...
A.
To help graduates of history major become successful businessmen.
B.
To provide liberal arts graduates with a method of meeting effectively the challenge in employment.
C.
To extend their knowledge learnt in the college.
D.
To moderate the tension between liberal arts and vocational faculties.
【单选题】I_______to Cambridge in years, not since we graduated.
A.
haven’t been back
B.
didn’t go
C.
have been back
D.
went back
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