【单选题】
已知各期环比增长速度为2%、5%、8%和7%，则相应的定基增长速度的计算方法为
①
（102%×105%×108%×107%）-100%
②
102%×105%×108%×107%
③
2%×5%×8%×7%
④
（2%×5%×8%×7%）-100%
【单选题】
已知各期环比增长速度为2%、5%、8%和7%，则相应的定基增长速度的计算方法为
①
（102%×105%×108%×107%）-100%
②
102%×105%×108%×107%
③
2%×5%×8%×7%
④
（2%×5%×8%×7%）-100%
【单选题】
已知各期环比增长速度分别为2%、5%、8%以及7%，则相应的定基增长速度的计算方法为( )。
①
(102%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>105%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>108%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>107%)-100%
②
102%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>105%x108%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>107%
③
2%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>5%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>8%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>7%
④
(2%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>5%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>8%<img width="10" height="17" src="/jxpt-web/static/3rdlib/UEditor/themes/default/images/spacer.gif"/>7%)-100%