WeChat（微信） is widely used．_____the young _____the old are interested in it．
| A． |
Either； or |
| B． |
Neither； nor |
| C． |
Not only； but also |
WeChat（微信） is widely used．_____the young _____the old are interested in it．
| A． |
Either； or |
| B． |
Neither； nor |
| C． |
Not only； but also |
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