网上订票系统为每一位订票者提供了方便快捷的订票业务,这种电子商务的类型属于()
A、B2C
B、B2B
C、C2C
D、C2B
参考答案:A
解析:
企业对消费者即B2C
After the fashion show, she was always ________ the beautiful clothes.
A.obsess with
B.obsessed with
C.obsess to
D.obsessed by
细胞内液占第二位的阳离子是()
A.Na+
B.K+
C.H+
D.Mg2+
E.Ca2+