Question
21.1
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
Question
21.2
dlqG4wnPmlD5kVtDV9QfAafTvSAPc5ejU7GUoUWVQVTpFXgFJPsqCaz3YVvtBve1/E5KBdiIphWJ92lAvh1huJlsGJ3DSMDRPIPonBOL6KTYxRn3dyd6E0rPRzJh16y1X1Wu7ztz67K3Q5Va54gSoT/I4U//GZ6PJ/fCo4df9PhV4bWdyyOrmvfxFht/q22x5rygO7/7mxNvMGq0Ff1a+z2oH/Umr991tcDs80qEuLVIXhHqAzztF9aOsAIdoz/w9Kkj8R1kMwaxtmYaha6mnUOl3eVSZvnE1C3pnQMMZICLOCy6702Zu7q6hzanXWwcqHTTQKijKowwVTMbkeL4zOxnmeHXA4GH8293Dt9XzGQUK/kD27HjXhyIzksJ7q9KM2jcByngYT4vlhjhhUHX1pGUVP2ptd8Bt07bBpuDyz9fCQjiq5If5cc+N9nbwDrcyX32xlhRa/ABCDgOOpOCi1hSr5kXxQ2+WF0VaiqnrWlZeRBXgkDlxAVJuDpzLXwFVmzdBaIykmPv0EwtLS7rPLkHP4Hcb14a/R0XrJx6NZcuRM1aUD/ugQ0B9oYG+GVrR0bzVrqLdPVd94oNEIU0aT9cSfcMa9mSJHi88iJz4ZsjjqRhodLDt/NMch8lMENZtJEgjOX1n9zri90Z5rJy0l6Jk3srfpsR9KCMseWU7/mUysPHuH6V9jQqvtB2SkOCNHgLvvoouDHiioVmhYsAHiCtwVZBlU1hrkE69tq7Jp7i7bQRv7XkAtZpXEc/Z9yqu5SCSK5GcAlVhWIpYcnCIas16Ov0pUHNmbTHv0RitOxUZOMkFLMBfNu79EV7LZ+9JXMMtLVr1Mbx6RJWk1c5WjrOfhQSfBGMEl2LjKWheNQI521JZhCILDSwqnnM4KrWMZRrmmcGbYMjqIFsn0IZt3opzYTk6r1/ZMKKFfLME43FCzqM/xHLvqvb0J3dmQqRRtjDurb3hKQX55TCF6mZkqjQstCfU6kRedec4chMmH2ehoFiKN3YpPmFDcZyVEkRxVO3gsQpXdK9TFsKNp4TBZzme9yEy1hyO/pgesRKlKyqTNFwZ4+/ifmWzqHL2xGBk6rRoACEKm+CKZgO8b1gp2SP7tNpfAbk3gjySedn23qWgUkszc6ucQIfwh0WMbSsJd1hwmX6sfj4OslLmRp7z9V0kHJKPpWHfJ5sOyokvNBQiwtVQbb4axXx7WWErrosRhkPL1FR3CdEDW8iPL8ju955Tk/1ymanSCgs4TEGnFfUO4zpf5cpTMeeDGx9dZxY3HAHzPkstFngJ3ILtDCuqgT8I19H+Ez9xPzUpGuTyxvT92YkFkD4dYooRF0NmScd5LNNBvkAITq7e72b5Yr8iDGmqYbyw065gy92upge1vCeuTi1AjMJMMD9aq3CJfBP
Question
21.3
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
Question
21.4
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
Question
21.5
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