preferent
adj. 优先的,享有优先权的
例句
Surverys indicate that finding out readers' demands, purchasing the preferent books, sharing information with readers without delay and so on can raise the utilization ratio of Chinese books.
经常了解读者需求,选购适宜图书,及时打印新书通报,编写新书推荐书目等措施,提高了中文图书有效利用率。