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【单选题】
ERP的概念提出于（ ）。A.
20 世纪 80 年代
B.
20 世纪 60 年代
C.
20 世纪 70 年代
D.
20 世纪 90 年代
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【单选题】如果神经纤维动作电位持续时间为2ms，那么，该神经纤维每秒内所能产生和传导的动作电位数不可能超过
A.
100次
B.
200次
C.
300次
D.
400次
E.
500次
【单选题】如果长期燃油修正显示的是低于0%的负值,则表明( )。(II)
A.
混合气过浓,ECM 使喷油脉宽减小
B.
混合气过稀,ECM 使喷油脉宽增大
C.
短期燃油修正已经失效
【简答题】Even though e-commerce has been around for a long time, only 5% of all goods produced are bought online. But e-commerce is still growing. It is breaking into traditional markets more than ever before....
【简答题】Passage 2 Even though e-commerce has been around for a long time, only 5% of all goods produced are bought online. But e-commerce is still growing. It is breaking into traditional markets more than ev...
【简答题】Jenny was my grandmother’s sister and she was an amazing woman. She was born in 1901 and 小题1: in 2000. It was a pity that she didn’t live to celebrate（庆祝）her 100th birthday, 小题2: she had a good,long l...
【简答题】UNIT3 同步训练 1. Complete the sentences with the proper words in the box. Change the forms if necessary. noticeable regard swallow challenging magician consequence average co...
【简答题】单词考查 （共10小题，满分20分） 小题1:He was found in ____________（拥有） of drugs and was accused. 小题2:To t_____________（改造）hills into fields is an extremely tough job. 小题3:It was a long journey, but we e____________ ...
【简答题】We played against a team from a country school. They didn't come until the began. They looked bad . They wore dirty( 脏的) blue pants and looked like fa rm boys .W e thought that they had never see...
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