Mary often does some translation work to earn extra money, which _______ half of her income. [ ]

A. makes up

B. counts on

C. accounts for

D. consists in

各种账簿应按页次顺序连续登记，不得跳行、隔页。如果发现跳行、隔页，应当将空行、空页划线注销，或者注明“此行空白”、“此页空白”字样，并由记账人员签名或者盖章。