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【多选题】
不锈钢按合金元素的特点分为()。A.
铬不锈钢
B.
钼不锈钢
C.
镍不锈钢
D.
钛不锈钢
E.
铬镍不锈钢
F.
铬钼不锈钢
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举一反三
【单选题】London underground is now underground transport system in the world, and Moscow Metro is underground system in the world.
A.
the largest; very busy
B.
the larger; the busier
C.
large; busy
D.
the largest; the busiest
【单选题】It __ that Moscow Metro is the busiest underground system in the world.
A.
turns over
B.
turns out
C.
turns on
D.
turns off
【简答题】Moscow
Metro system is _______ the most successful means of transportation, _____ a
popular place of interest.A. not only...and B. not only...but C. not ...but D. not ...or
【简答题】Moscow Metro is (busy) underground system in the world.
【单选题】It _________that Moscow Metro is the busiest underground system in the world.
A.
turns off
B.
turns out
C.
turns on
D.
turns over
【简答题】How is it different from bus? Fill in the chart . characteristics metro bus
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