国内口腔颌面部恶性肿瘤较常发于年龄段为()
A.20~30岁
B.30~40岁
C.40~60岁
D.60岁以上
E.10~20岁
参考答案:C
The boss took it for granted that his secretary should keep him well-informed.
A.assumed that it was true without doubt
B.believed that it was true without making sure
C.agreed that it was necessary
D.thought that it was beneficial
根据《行政处罚法》的规定,当事人到期不缴纳罚款的,每日可按罚款数额的百分之三加收,这笔加收费用叫做( )。
A.加收罚款B.滞纳金C.加处罚款D.逾期罚款