问使用JavaScript的数组中的两个下拉列表值？

var select = document.getElementById("selectNumber");
var select2 = document.getElementById("selectNumber2");
var options = ["1", "2", "3", "4", "5"];
for (var i = 0; i < options.length; i++) {
    var opt = options[i];
    var el = document.createElement("option");
    el.textContent = opt;
    el.value = opt;
    select.appendChild(el);
    select2.appendChild(el);
}

<select id="selectNumber">
    <option>Choose a number</option>
</select>
<select id="selectNumber2">
    <option>Choose a number</option>
</select>