判断某原子属于何种元素的依据是 [ ]
A.电子数
B.质子数
C.相对原子质量
D.中子数
答案:B
期货公司营业部应当在公司总部的统一管理下对外提供期货投资咨询服务。()
---Tom just told me a new way he had thought of new words.
--- It’s great. What do you think of it?
A.remembering
B.to remember
C.be remembered
D.to be remembered