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题库 / Prep2007E1-SC-158
The largest trade-book publisher in the United States has announced the creation of a new digital imprint division, under which it will publish about 20 purely digital works to be sold online as either electronic books or downloadable copies that can be printed upon purchase.
works to be sold online as either electronic books or
works to sell them online, either as electronic books or
works and it will sell them online as either electronic books or as
works, and selling them online as either electronic books or as
works, and it will sell them online either as electronic books or
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AE区别：
B，to sell them 是books的定语，但是books不能主动卖，是被卖
C, ethier or的平行结构不对
D. and 前后不平行
E，逗号直接让前后两句话并列，并列级别不对
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