问题
单项选择题 A1型题
影响牙石形成的因素是()
A.唾液成分
B.菌斑量
C.口腔卫生习惯
D.修复体的光洁度
E.以上均是
答案
参考答案:E
影响牙石形成的因素是()
A.唾液成分
B.菌斑量
C.口腔卫生习惯
D.修复体的光洁度
E.以上均是
参考答案:E
Recreational pursuits() can be a part of everyday life, 365 days a year in Vancouver. We provide and maintain playgrounds, sports fields, ice rinks, fitness centers, indoor and outdoor pools, beaches, tennis courts, golf courses, skateboard parks and numerous other ways for any and all to participate. Knowledgeable staff work hard to provide leisure() activities suited to people of every age, culture and ability. Recreation also means our 23 community() centers, serving all ages and supporting awide range of recreational, social and cultural pursuits. Programs include aerobics arts and many more. Community centers are cooperatively operated with people living nearby, making for good partnerships between city government and its residents.
A. people living in nearby cities B. 23 community centers C. residents of Vancouver D. the government of Vancouver 2. From Leisure Guide 2008, you may probably find information about ____. A. arts and culture B. recreation programs C. plans and timetable of different activities D. partnerships between city government and its residents 3. You will probably click _____ to help your grandparents find some leisure activities. A. Seniors Programs and Services B. Football Fields C. Rugby Fields D. Adapted Programs |