三栏式现金日记账( )。
A．可以分别设置收入和支出两本账
B．在账页上应连续编号
C．按现金收支的对应账户设置专栏
D．以上说法都不正确
参考答案：B
He was late for school because ________.[ ]
A. his being ill
B. he is ill
C. he was ill
D. his ill
布置在对流烟道内，以（）为主的过热器叫对流过热器。
