送达期间以时、日、月计算,期间开始之时或者日不计算在内。
参考答案:对
He worked hard to ________ some money for his retirement.[ ]
A. set aside
B. set out
C. set off
D. set about
哈罗德认为,只有实现I=S这一条件,经济才能实现均衡增长。()