练习：
★1).Thailand suffers a lot due to the price slumps of its biodiesel.-N
★2).Biodiesel is superior in quality to traditional petroleum.-W
★3).Biodiesel can be made from coconut and palm oil, or from waste cooking oil.-R
★4).Malaysia, and the Philippines are the first countries in the world to have public policy supporting the commercialization of biodiesels.-W
★5).Yuthachai’s fuel is welcomed by both farmers and ferry operators for its low prices.-R
★6).Yuthachai, the inventor of biodiesel, is currently the general manager of a US-Thailand joint venture in Bangkok.-N
★7).It seems that Yuthachai places his fellow farmers’ interest before his own.-R
