A salmon is not as expensive as tuna B tuna is more popular among consumers C wild fish is more precious than farmed fish D the prices of fish are in fact decided by FAO

A the shonage of fishermen B ever-increasing oil prices C the change of Chinese diets D high market demand and cost

A quality B size C quantiiy D popularity

A disease control B lower labour cost C energy conservation D reduction of fish feed

A attract more talents B restrict immigration C protect local students D reply to fake colleges

A fairly difficult B extremely strict C surprisingly loose D extraordinarily similar

A Wild Fish:Demand Decides Price B The Rising Price of Rare Wild Fish C Ffumed Fish:Making Improvements D The Prices of Fishes:Rising Differently

A the increase of living cost B the rising cost of schooling C the impact of fmancial crisis D the decrease of tuition subsidy

A many foreign students are from weahhy families B most students in the class are not spoiled at home C those who flew business class are from poor families D Britain has the world's mosL successful private schools

A deprive the country of foreign elites B lose both domestic and foreign talenls C harm iLs long-term economic prospects D lose its advantage in sports competilion