从事会计工作的人员,必须取得会计从业资格证书。 ( )
参考答案:对
小明身高x米,哥哥的身高是小明的2倍.那么2x表示______,2x-x表示______.
The foreign visitors ____ watching Beijing Opera at Haidian Theater. [ ]
A. looked forward to
B. looking forward to
C. look forward to
D. will look forward to