let arr=['a', 'b'] for (let index of arr.keys()) { console.log(index); } for (let elem of arr.values()) { console.log(elem); } for (let [index, elem] of arr.entries()) { console.log(index, elem); }
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【简答题】1 word for each blank Opinions for online learning: 1. While online education is expanding, they will not r____(1)____ the on-campus experience. Take it easy. 2. The evolving technology opens up new ...
【简答题】Directions: Read the following passage and choose the correct answer for each question or statement. Bill Gates recently predicted that online learning will make place-based colleges less significant,...