强直性脊柱炎的患者,椎体融合的节段越多,邻近未融合节段的应力变化为() ["越大","越小","无变化","先变大,再随病程发展逐渐变小","先变小,再随病程发展逐渐变大"]
我国对新建企业噪声卫生标准的规定是,每日工作8小时,噪声强度不得超过()。 ["80dBA.","85dBA.","90dBA.","95dBA.","115dBA."]
下列哪项不会引起意识障碍() ["肺性脑病","肝性脑病","休克Ⅰ期","尿毒症脑病","颅内占位性损伤"]
中央银行可能影响商业银行贷款能力的传统货币手段是()。 ["法定准备金率","公开市场业务","道义劝告","再贴现率"]
图斑最小上图面积标准中,城镇村及工矿用地为图上()mm2。 ["15","8","6","4"]
膳食纤维的生理功能有哪些?