M、Kg、S、A、K、cd、mol是国际单位制中所规定的七个基本单位符号。()
参考答案:对
Which of the following can best describe his situation().
A.Hurt.
B.Scared.
C.Dumbfounded.
D.Ruined.
该投资项目的年营业现金流入为( )万元。
A.40
B.60
C.80
D.100