【单选题】【消耗次数：1】
针式打印机的接口有几种（ ）。
①
4种
②
3种
③
2种
④
5种
参考答案：
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【多选题】
打印机（Printer）是计算机的输出设备之一，用于将计算机处理结果打印在相关介质上。根据打印原理的不同，打印机主要分为哪3种？
①
针式打印机
②
一体打印机
③
喷墨打印机
④
激光打印机
随机题目
【单选题】
Please drop in whenever you can.. I’d like to keep _________ touch..
①
in
②
to
③
on
④
with
【单选题】
_______ of the twins was arrested, because I saw both at a party last night.
①
None
②
Both
③
Neither
④
D. All
【单选题】
_____ for the fact that she broke her leg, she might have passed the exam.
①
Had it not been
②
Hadnt itbeen
③
Was it not
④
Were it not
【单选题】
Obviously, the Chairman’s remarks at the conference were _____ and not planned.
①
substantial
②
spontaneous
③
simultaneous
④
synthetic