影响钙吸收的主要因素是() ["肠道pH","年龄","性别","食物中钙的量","肠蠕动加快"]
周围血中性粒细胞和淋巴细胞数大致相等,常发生在出生后的() ["1~5d","6~9d","10~14d","6~21d","21~35d"]
()被称为计算机之父和人工智能之父。 ["图灵","特斯拉","比尔盖茨","乔布斯"]
下列关于荚膜说法,错误的是()。 ["A.其成分多为脂类","B.对细菌的存活起一定的保护作用","C.有抗吞噬作用","D.荚膜物质具有抗原性","E.可作为细菌鉴别和分型的基础"]
胃癌最好发的部位是() ["胃窦","胃小弯","胃大弯","胃底","全胃"]
大灵通