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<label><input type="checkbox" ng-model="allCheck">まとめて</label>
<label><input type="checkbox" ng-checked="allCheck">a</label>
<label><input type="checkbox" ng-checked="allCheck">b</label>
<label><input type="checkbox" ng-checked="allCheck">c</label>
var app = angular.module('app', []);
angular.bootstrap(document, ['app']);
label {
    display: block;
}