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正确
<div class="btn-group @(12)">
<button class="btn btn-primary">Apple</button>
<button class="btn btn-primary">Samsung</button>
<button class="btn btn-primary">Sony</button>
</div>
<div class="btn-group btn-group-lg">
<button class="btn btn-primary">Apple</button>
<button class="btn btn-primary">Samsung</button>
<button class="btn btn-primary">Sony</button>
</div>
不正确
点击 此处 重试 正确
下一题 ❯<div class="btn-groupw3exercise_input_no_0"> <button class="btn btn-primary">Apple</button> <button class="btn btn-primary">Samsung</button> <button class="btn btn-primary">Sony</button> </div> |