第6题: [单项选择]应力对骨生长的作用错误的是()。 A. 应力可促进骨痂的形成 B. 长期缺乏应力的作用,易使骨吸收加快,产生骨质疏松 C. 只有应力过低会使骨吸收加快,应力过高不会加快骨吸收 D. 失重可造成骨钙丢失 E. 反复承受高应力的作用,可引起骨膜下的骨质增生 参考答案:C 答案解析:骨骼都有其最适宜的应力范围,应力过高或过低都会使其吸收加快。所以C答案错误。
第32题: [单项选择]Ellis Haizlip began his stage career in Washington D. C. , ______ supervised the Howard University Players during their summer season. A. he was B. where he was C. which he D. where he 参考答案:D