<div class="form-group">

    <label class="control-label">性别：</label>

    <br>

    <label class="radio-inline">

        <input type="radio" name="sex" value="option1">先生

    </label>

    <label class="radio-inline">

        <input type="radio" name="sex" value="option1">先生

    </label>

</div>