完形填空 说明文/议论文专练一(7篇)一、阅读下面短文,从短文各题所给的四个选项(A、B、C和D)中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。Nowadays, many of us track our steps with smart watches, pedometers (计步器) or phone apps and are of course thrilled when we reach that all-important daily goal of 10,000 steps. You might???? 1???? that this number has a...