1. The most important innovation of the efficient matrix method is the development of hierarchical algorithms for implementing :
2. The most important innovation of the hierarchical matrix method is the development of efficient algorithms for performing

no

1. Another new bridge was built at Neak Leung on the Phnom Penh to Ho Chi Minh Highway 1 with Japanese government assistance , and opened in 2015 .
2. Another new bridge was built by Neak Leung at Phnom Penh to the Ho Chi Minh Highway 1 with Japanese government assistance , and opened in 2015 .

yes

1. When the fruit is ripe , it appears orange-brown and tastes sweet .
2. When ripe the fruit appears orange-brown and tastes sweet .
yes