【单选题】Jack wasn’t saying anything,but the teacher smiled at him________he had done something very clever. (2011·湖南,33)
【单选题】Jack wasn’t saying anything, but the teacher smiled at him _______ he had done something very clever.
【简答题】请写出下列英文对应的中文:packing loan( );outward bills( );inward bills( );bill discount( );supplier's credit( );buyer's credit( );shipping guarantee( ).
【多选题】通过制定管理制度规避培训风险,需要考虑()。
【简答题】Who used to pay for most public transport?
【单选题】The trains___ the travellers who want to go to other places.
【单选题】If every student who was in the eleventh grade in 1996 and who used a computer in school at least once a week used a computer at least once a week in 1997, and if 20% of those students who were in the...