某幼儿园发现一例麻疹患儿,对该幼儿园易感儿于5天内肌注以下何种制剂为最佳()
A.母亲全血
B.丙种球蛋白
C.母血浆
D.胎盘球蛋白
E.麻疹疫苗
参考答案:B
对研究所需指标或数据进行测定或测量时产生的偏倚为()
A.诊断怀疑偏倚
B.入院率偏倚
C.现患–新发病例偏倚
D.易感性偏倚
E.测量偏倚
Reading became difficult for the old lady, so the optician ______ her a pair of glasses to make her reading possible.
A.proscribed
B.inscribed
C.prescribed
D.described