随机分组的方法不包括()
A.抛币法
B.抽签法
C.随意
D.摸球
参考答案:C
一次性使用无菌注射器其镉的含量应是
A.≤10B.≤5C.≤1.0D.≤0.5E.≤0.1
— Did you see _________ jacket on the playground just now?
— Is it _________ new one and very cool?
A.a; the
B.the; a
C.a; a
D.the; the