照顾人物()和衣服颜色等关系是多人合影照常用的排列的方法。
A、头形、男女
B、发型、表情、头形
C、情绪、发型
D、主次、高矮、胖瘦
参考答案:D
________ these experiments were successfully completed would we think of going into humans.
A.If only
B.Only if
C.So that
D.Even if
7名某传染病患者,其潜伏期分别为13,10,12,9,8,11,98(天),则中位数是()
A.23
B.11
C.12
D.10
E.12.5