【单选题】Who first used umbrellas?
【单选题】The two dogs were used to_______ in this strict way and they were once used to _____ prisoners who had run away from prison. [ ]
A.
being trained, search for
B.
being trained, looking for
C.
be trained, search for
【单选题】电化学储能分类中的锂离子电池的特点是()。
B.
寿命长,可深度放电,便于组合,环保性能好;储能密度稍低
C.
比能量与比功率高;高温条件、运行安全问题有待改进
D.
比能量高,循环特性好;成组寿命有待提高,安全问题有待改进
【多选题】通过制定管理制度规避培训风险,需要考虑( )。(2006年5月二级真题)
【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.