行政机关实施加处罚款或者滞纳金超过()日,经催告当事人仍不履行的,具有行政强制执行权的行政机关可以强制执行。
A.10
B.15
C.30
D.60
参考答案:C
The heavy rain __________ the early bus _________ on time.
prevented; to arrive B. prevented; from arriving
C. stopped; to arrive D. stop; arriving
根据等效应曲线图,若总治疗时间不变,每周由5次减少到3次照射,总剂量应减少()
A.5%-10%
B.10%-15%
C.15%-20%
D.20%-25%
E.25%-30%