“配送一卡通”具体目标不包括()。
A、实现身份识别
B、实现单据流转统一
C、实现运费结算
D、实现各系统衔接
参考答案:C
I'm helping my mother_________. [ ]
A. with her houseworks
B. for her housework
C. with her housework
D. for her houseworks
对一名老年人做口腔健康检查,发现该名老年人口腔中牙龈退缩的牙面有50个,其中患根龋的牙面4个,因根龋充填的牙面4个。该名老年人的根龋指数是()
A.15%
B.16%
C.17%
D.20%
E.25%