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【简答题】
打印机的性能指标主要包括打印______、打印速度、色彩数目和打印成本等。
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【简答题】A freight forwarder is also called（ ）．
【简答题】A freight forwarder is also called（ ）．
【简答题】In a database, columns are also called ________, rows are also called ________
【单选题】Paifang, also called pailou is an archway usually made of wood and stone, well painted and with glazed tiles sometimes, and it has many different functions except for ____________.
A.
commemorating historical event
B.
commending the persons with a high moral quality
C.
celebrating the important festival
D.
honoring the persons with the remarkable achievements