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Muchtothedelightofthebosssteelproductionthisyearhasincreasedby20%comparedwithoflastyear.A.whichB.whatC.thatD.it

题目详情

Much to the delight of the boss steel production this year has increased by 20% compared with ____ of last year.

A. which B. what C. that D. it

 

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答案和解析

C