Passage 1China remains primarily

Passage 1
China remains primarily a nation of farmers,and the transition to an industrial free market is much like the traffic on Highway 204——unpredictable. Few state-owned firms have been sold,and most are laggard behemoths. Growth is driven by new joint ventures, collectives and private businesses, which now account for more than 50% of China's industrial production. For China's newly-rising enterprises, profits are up throughout the region—thanks largely to low wages. Last year the BeiBei company cleared $14 million on exports of 10 million pairs of shoes to U. S. department stores. China's low wages give China a huge competitive advantage. Just two years ago South Korean manufactures were flourishing on contracts from Nike and Adidas. Since then much of the business has shifted to China, dealing a hard blow to the South Korean shoe industry.
Why state-owned firms are described as laggard behemoths?
【正确答案】：Because they are slow and large, of low efficiency.