自然数按能否被2整除可以分为[ ]
A.奇数和偶数
B.质数和合数
C.质数、合数和1
答案:A
题目分析:
了解一个药品是否为进口分装,最简单方法是()。
A.打电话给出售该药品的企业查询
B.打电话给邻近的口岸药检所查询
C.打电话给药品注册的行政部门查询
D.查看包装上批准文号内有否标识英文大写字母"F"字
E.查看包装上批准文号内有否标识英文大写字母"J"字
I was so familiar with him that I recognised his voice ____I picked up the phone.
A.while
B.the moment
C.after
D.in case