Its rankings are based on surveys with about 13,000 executives around the world.
这一排名是基于对全球约13,000名高管进行的调查得出的。
Based on surveys Barnes collected, the top five worries of parents are, in order.
根据巴尔·内斯的调查,家长最最担心的五件事情分别是。
Contingent valuation is based on surveys of the "disutility" of death at different ages.
条件价值评估是基于不同年龄段的“负效用”死亡的数项调查。
The findings are based on questions about health-related quality of life in government telephone surveys.
VOA: special.2010.01.13
Jess Ford of the Government Accountability Office said that despite using multiple methods, the station's audience remains small based on four telephone surveys conducted since 2003.
VOA: standard.2009.06.18
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