Disable page click from going to the next question without permission. Additionally, "Enter" key will submit answers, and "space" will override incorrect answers. Only accept 'enter', 'space' keys and 'click' events.
目前為 2017-08-22 提交的版本，檢視 最新版本。
這裡只顯示彼此間有代碼差異的版本。 顯示所有版本。
