SelectWhat's included
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，这一点在okx中也有详细论述
The IBM 3270 terminal. The Selector Light Pen was used to select data fields, somewhat like a mouse. This terminal is a later model, the 3278; in the photo it is displaying 43 lines of 80 characters. From IBM 3270 Brochure (1977).
在旅游Cos委托里，卖的从来不是向导服务，而是情绪。，这一点在超级权重中也有详细论述